Solved question paper for PHY May-2018 (DIPLOMA 1st-2nd)

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Physics May-2018

PSBTE • DIPLOMA • Production and Industrial Engineering • 1st-2nd • May-2018

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

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SECTION-A

Q1. a) Fill in the blanks.

i. Relative permittivity of air is……………

Very Short Answer 10x1=10 Marks May-2018 • PSBTE DIPLOMA

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Frequency of direct current is…………………

Very Short Answer May-2018 • PSBTE DIPLOMA

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………… mirror is used as a rear view mirror in vehicles.

Very Short Answer May-2018 • PSBTE DIPLOMA

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Output of He-Ne laser is a …………… wave.

Very Short Answer May-2018 • PSBTE DIPLOMA

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May 2019 Output of He- Ne laser is a ______ Wave.

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

Very Short Answer May-2018 • PSBTE DIPLOMA

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

Dec 2016 In N type Semiconductor________ are the majority carriers.

May 2015 _____________ are the majority carrier in P-type semiconductor.
State True or False.

vi. Dielectrics decrease the capacity of parallel plate capacitor.

Very Short Answer May-2018 • PSBTE DIPLOMA

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EMF is the difference of potential between two electrodes in open circuit.

Very Short Answer May-2018 • PSBTE DIPLOMA

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In a microscope, focal length of objective lens is greater than eye-piece.

Very Short Answer May-2018 • PSBTE DIPLOMA

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May 2015 In a compound microscope focal length of objective lens is larger than eye-piece.

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

Very Short Answer May-2018 • PSBTE DIPLOMA

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May 2017
Total internal reflection is used in optical fibres.

May 2016 Total internal reflection is used in optical fibres.

May 2015 Total internal reflection is used in optical fibers.
Zener diode is used in stabilizing the circuits

Very Short Answer May-2018 • PSBTE DIPLOMA

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Multiple choice questions.

i. A well cut diamond appears bright due to

a. It emits bright light b. scattering of light c . total internal reflection d. it emits luminous particles.

Very Short Answer 5x1=5 Marks May-2018 • PSBTE DIPLOMA

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Electric lines of force at positive point charge are

a. circular anti-clockwise b. radial outward c. circular clockwise d. radial inward

Very Short Answer May-2018 • PSBTE DIPLOMA

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Two resistances of 9 Ω and 18 Ω are connected in series. Equivalent resistance is

a. 20 Ω b. 27 Ω c. 9 Ω d. 2 Ω

Very Short Answer May-2018 • PSBTE DIPLOMA

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To increase the range of an ammeter, we used to connect a suitable

a. low resistance in parallel b. low resistance in series c. high resistance in parallel d. high resistance in series

Very Short Answer May-2018 • PSBTE DIPLOMA

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LASER is based on the principle of

a. total internal reflection b. refraction c. population inversion d. spontaneous emission

Very Short Answer May-2018 • PSBTE DIPLOMA

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Attempt any six questions.

a. An object is placed at 35 cm from a concave mirror of focal length 70 cm. Determine the position and nature of image formed.

Short Answer 6x5=30 Marks May-2018 • PSBTE DIPLOMA

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What is total internal reflection (TIR)? Explain one of its applications.

Short Answer May-2018 • PSBTE DIPLOMA

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May 2024 Explain the phenomenon of total internal reflection. Give conditions for its observation.

May 2023 What is total internal reflection? Explain in detail with diagram and examples.

May 2021 What is total internal reflection? What are necessary conditions for total internal reflection?

May 2020 What is total internal reflection? What are conditions for it.

May 2019 Define total internal reflection. What are essential conditions for TIR?

Dec 2015 What is total internal reflection? Explain with diagram.
Write the properties of electric lines of force.

Short Answer May-2018 • 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?

Dec 2018 Give some properties of electric lines of force.

May 2015 Give some properties of electric lines of force.
What are the differences between EMF and potential difference of a cell?

Short Answer May-2018 • PSBTE DIPLOMA

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State Lenz’s laws in electromagnetic induction.

Short Answer May-2018 • PSBTE DIPLOMA

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State Kirchoffs laws.

Short Answer May-2018 • PSBTE DIPLOMA

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May 2021 State Kirchhoff’s law of electricity.
What is depletion layer in p-n junction?

Short Answer May-2018 • PSBTE DIPLOMA

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What is population inversion?

Short Answer May-2018 • PSBTE DIPLOMA

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May 2024 Define population inversion.
SECTION-C

Attempt any three questions.

Q3. State and prove Gauss law.

Long Answer 3x10=30 Marks May-2018 • PSBTE DIPLOMA

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Derive lens formula for thin convex lens in case of real image.

Long Answer May-2018 • PSBTE DIPLOMA

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May 2021 Derive lens formula for the convex lens when image formed is virtual.

May 2021 What is lens? Derive lens formula for thin convex lens.
a) 3 equal resistances are arranged in series and then they are arranged in parallel. Find out the ratio of Rs/Rp where Rs is equivalent resistance in series and Rp is equivalent resistance in parallel

b) State Ohm’s law. What is the effect of temperature on resistance of conductor?

Long Answer May-2018 • PSBTE DIPLOMA

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Explain principle, construction and working of moving coil galvanometer.

Long Answer May-2018 • PSBTE DIPLOMA

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a) Differentiate between n-type and p-type semiconductors.

Long Answer May-2018 • 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.

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.

May 2015 Differentiate between N-type and P-type semiconductors.

Dec 2015 Differentiate between intrinsic and extrinsic semiconductors.

What is Ruby laser? Explain its working with diagram.

Long Answer May-2018 • PSBTE DIPLOMA

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May 2024 Explain principle, construction and working of Ruby laser.

May 2023 Explain the principal, construction and working of ruby laser in detail with diagram.

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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-2018 (DIPLOMA 1st-2nd)

Physics May-2018

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