Solved question paper for PHY May-2015 (DIPLOMA 1st-2nd)

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Physics May-2015

PSBTE • DIPLOMA • Information Technology • 1st-2nd • May-2015

PHY is the Physics subject for Punjab State Board of Technical Education Diploma in Engineering 1st-2nd semester students who want subject-wise previous year question papers. On this page, students can look for old papers in a semester-wise format to understand exam pattern questions, revision topics, and commonly repeated units before the exam. Use these PHY papers to practice important questions, check how Physics is asked in diploma exams, and revise faster from previous year question papers. BRpaper is not the official website of Punjab State Board of Technical Education or any board/university, and it only helps students find exam preparation material.

Question papers (year-wise) Solutions

Solved Questions

Solved

When a ray of light travels from glass to water separated by a sharp boundary, it bends ___________.

Fill in the Blanks 1 Marks May-2015 • PSBTE DIPLOMA

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A ___________ charge produces an electric field only.

Fill in the Blanks 1 Marks May-2015 • PSBTE DIPLOMA

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May 2023
A _____ charge produces only electric field.
S. I. unit of potential difference is same as the unit of _____________.

Fill in the Blanks 1 Marks May-2015 • PSBTE DIPLOMA

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A _____________ is used to measure potential difference between two points of conductor.

Fill in the Blanks 1 Marks May-2015 • PSBTE DIPLOMA

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May 2019 A ________ is used to measure potential difference between two Points of conductor.

_____________ are the majority carrier in P-type semiconductor.

Fill in the Blanks 1 Marks May-2015 • PSBTE DIPLOMA

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May 2018
………. are majority carriers in p-type semiconductor.

Dec 2018 ________ are the majority carriers in P-type semiconductor.

Dec 2016 In N type Semiconductor________ are the majority carriers.
In a compound microscope focal length of objective lens is larger than eye-piece.

True / False 1 Marks May-2015 • PSBTE DIPLOMA

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May 2018
In a microscope, focal length of objective lens is greater than eye-piece.
1 picofarad is bigger than 1 nanofarad.

True / False 1 Marks May-2015 • PSBTE DIPLOMA

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May 2024 1 picofarad is bigger than 1 nanofarad. (T/F)

May 2019 1 Pico farad is bigger unit than Nano farad.
Heat produced in a conductor depends directly on time.

True / False 1 Marks May-2015 • PSBTE DIPLOMA

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A solenoid acts as a bar magnet.

True / False 1 Marks May-2015 • PSBTE DIPLOMA

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Total internal reflection is used in optical fibers.

True / False 1 Marks May-2015 • PSBTE DIPLOMA

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May 2018
Total internal reflection (TIR) is used in optical fibers.

May 2017
Total internal reflection is used in optical fibres.

May 2016 Total internal reflection is used in optical fibres.
A lens is formed by combining two thin lenses in contact having power +12 D and – 8 D. The focal length of the combination is:

MCQ 1 Marks May-2015 • PSBTE DIPLOMA

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Two capacitors of capacity 2 µF and 6 µF are in parallel. The effective capacitance of the system in µF will be

MCQ 1 Marks May-2015 • PSBTE DIPLOMA

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B.O.T. (Board of Trade) unit is the unit for measuring:

MCQ 1 Marks May-2015 • PSBTE DIPLOMA

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May 2019 B.O.T. ( Board of Trade ) unit is unit for measuring

Dec 2016 B.O.T (Board of Trade) unit is the unit for measuring.
To increase the range of a voltmeter, we needed to connect a suitable

MCQ 1 Marks May-2015 • PSBTE DIPLOMA

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May 2019 To increase the range of a voltmeter, we needed to connect a suitable
If the forward voltage in a diode is increased the length of depletion layer will

MCQ 1 Marks May-2015 • PSBTE DIPLOMA

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What is magnifying power of an instrument? Give mathematical expressions for magnifying power of simple and compound microscope.

Long Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2021 What is a simple microscope? Draw optical diagram. Define m agnifying power and find an expression for magnifying power of simple microscope.

May 2020 What is simple microscope? Derive expression for its magnifying power.

Dec 2018 What is Simple Microscope? Find expression for its magnifying power.

What are the factors affecting the capacity of a capacitor?

Short Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2024 Define a capacitor. What are the factors affecting its capacitance?

May 2020 What are factors affecting capacitance of a capacitor.

Dec 2017
a) What is principle of a parallel plate capacitor? Describe the various factors affecting the capacity of a capacitor? Explain

Dec 2016 What are the factors affecting the capacity of a capacitor?
A charge of 4 µC is placed in an electric field of intensity 50 × 10^5 N/C. What is the magnitude of the force acting on the charge?

Short Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2019 A charge of 4 µC is placed in an electric field of intensity 50 x 10 5 N/C. What is the magnitude of force acting on the square?

Dec 2015 A charge of 4µC is placed in an electric field of intensity 50×10^5 N/C. What is the magnitude of force acting on the charge?
Write a short note on Kirchhoff’s laws and their applications.

Long Answer 5 Marks May-2015 • PSBTE DIPLOMA

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An incandescent lamp draws a current of 0.3 A at 240 volt. Find the resistance of lamp.

Short Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2019 An incandescent lamp draws a current of 0.3 A at 240 volts. Find the resistance of lamp.

Dec 2011 An incandescent lamp draws a current of 0.3 A at 240 volt. Find the resistance of lamp.

What is electric motor? Explain its principle.

Long Answer 5 Marks May-2015 • PSBTE DIPLOMA

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Differentiate between N-type and P-type semiconductors.

Short Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2023 Differentiate between intrinsic and extrinsic type semiconductors.

May 2021 Differentiate between Intrinsic and extrinsic semiconductor. Give five differences.

May 2020 Distinguish between P-type and n-type semiconductors.

May 2019 Differentiate between intrinsic and extrinsic semiconductors.

May 2018
a) Differentiate between n-type and p-type semiconductors.
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Dec 2018 Differentiate between N-type and P-type semiconductors.

May 2017
Differentiate between intrinsic and extrinsic type semiconductors.

May 2016 Differentiate between N-Type and P-Type semiconductors.

Dec 2016 Differentiate between intrinsic and extrinsic semiconductor.

Dec 2016 Differentiate between N-type and P-type semiconductor.

Dec 2015 Differentiate between intrinsic and extrinsic semiconductors.
Give some properties of laser light.

Short Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2020 What do you mean by term ‘LASER’? Give any three properties of laser light.

May 2019 Give some properties/ characteristics of laser light.

Dec 2018 Give some properties of Laser light.

May 2017
Write down the properties of LASER.

Dec 2016 Give some properties of laser light.
The eye-piece of a telescope has a focal length of 10 cm. The distance between objective and eye-piece is 2.1 m. What is magnification of telescope?

Short Answer 5 Marks May-2015 • PSBTE DIPLOMA

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Dec 2011 A reflecting type telescope has a large mirror of its objective of focal length 100 cm. What is the magnifying power of the telescope, if the eye piece has a focal length of 10 cm?

A convex lens of small focal length can be used as a microscope. Explain how?

Long Answer 5 Marks May-2015 • PSBTE DIPLOMA

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What is meant by power of a lens? Give units of power of a lens.

Short Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2024 The unit of power of a lens is ________.

May 2023
Power of a lens is measured in _____

Dec 2018 What is meant by power of a lens? Give units of power of a lens.

May 2017
What is meant by power of a lens? Give units of power of lens.

May 2016 What is meant by power of a lens? Give units of power of lens.
Find expression for capacity of parallel plate capacitor.

Long Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2019 Derive the expression for capacity of a parallel plate capacitor.

Dec 2018 Find the expression for capacity of a parallel plate capacitor.

Dec 2011 Capacitance of parallel plate capacitor
Give some properties of electric lines of force.

Short Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2024 What are the properties of electric lines of forces?

May 2021 Write five properties of electric lines of force.

May 2021 What are properties of electric lines of force?

May 2018
Write the properties of electric lines of force.

Dec 2018 Give some properties of electric lines of force.

Define the following terms and give their S.I. units: resistance, resistivity, conductance, conductivity.

Long Answer 5 Marks May-2015 • PSBTE DIPLOMA

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Differentiate between E.M.F. and potential difference.

Short Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2023 Differentiate between E.M.F. and Potential Difference.

Dec 2018 Differentiate between EMF and potential difference.

May 2017
(a) Differentiate between E.M.F. and Potential difference.
Show how will you change a galvanometer into ammeter.

Long Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2023 Explain that how a galvanometer can be changed into a voltmeter?

May 2020 How will you convert galvanometer into ammeter? Explain.

Dec 2018 Explain how a galvanometer can be converted into a voltmeter of given range?

Dec 2017
Explain how will you convert a galvanometer into a voltmeter
Force between two parallel current carrying conductors is F1. If the current in each conductor is doubled, find the force between them.

Short Answer 5 Marks May-2015 • PSBTE DIPLOMA

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Explain working of PN junction diode as half wave rectifier in detail.

Long Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2017
Explain the working of p-n junction diode in detail with diagram.
Write a short note on Optical Fiber Communication.

Short Answer 5 Marks May-2015 • PSBTE DIPLOMA

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May 2019 Write a short note on optical fiber communication.

Dec 2018 What is optical fiber? Write down a short note on optical fiber communication.

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FAQ

Frequently Asked Questions

Answers about this subject, solved papers, and preparation.

Updated regularly

01 Where can I find PHY previous year question papers for PSBTE Diploma?

You can use this subject page to find PHY subject-wise previous year question papers for the PSBTE Diploma in Engineering 1st-2nd semester.

02 Are PHY question papers available as PDF?

This page is meant to help students look for PHY question paper PDFs and other old paper resources, if available.

03 Can I use PHY old papers for exam preparation?

Yes, PHY previous year papers are useful for revision, understanding the exam pattern, and spotting repeated question styles.

04 Does this page provide solved PHY papers?

Students often search for solved papers, but availability may vary. This page focuses on PHY previous year question papers and exam preparation material.

05 What is the benefit of studying PHY PYQ papers?

PHY PYQ papers help you revise important topics, identify commonly asked units, and prepare more confidently for the exam.

Solved question paper for PHY May-2015 (DIPLOMA 1st-2nd)

Physics May-2015

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