Solved question paper for PHY Dec-2011 (DIPLOMA 1st-2nd)

Home
psbte
diploma
it
1st-2nd
phy
Dec-2011

Solved Question Paper

Physics Dec-2011

PSBTE • DIPLOMA • Information Technology • 1st-2nd • Dec-2011

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

The wavelength associated with a particle of mass m and moving with velocity V is given by λ = h/mv, where h is Planck's constant. The dimensional formula of h is

MCQ 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2020 The wavelength λ associated with a moving particles depends upon its mass m, velocity v and Planck’s constant h. Show dimensionally that λ ∝ h/(mv).

Dec 2016 The wavelength λ associated with a moving particle depends upon its mass m, velocity v and Planck’s constant h. Show dimensionally that λ ∝ h/(mv).
If A × B = 0, then angle between A and B is

MCQ 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
A body is not in translatory equilibrium when

MCQ 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
A boat anchor is rocked by waves whose crests are 100 m apart and whose velocity is 25 m/s. These waves strike the boat once every:

MCQ 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.

Hydrogen and nitrogen are at the same temperature. The molecules of which one of them will have more average K.E.?

MCQ 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
All molecular motion ceases at 0°C.

True / False 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
All materials expand when heated.

True / False 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Steel is more elastic than rubber.

True / False 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.

All parts of a rotating wheel have same angular acceleration.

True / False 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
A cyclist cannot negotiate a curve without bending himself.

True / False 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
If a light and a heavy body have equal K.E., the lighter body has _______ momentum.

Fill in the Blanks 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
If normal reaction is doubled, the coefficient of friction is _______.

Fill in the Blanks 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.

If A + B = -A, then B is a ______ vector.

Fill in the Blanks 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
W = Mass × _______ × _______.

Fill in the Blanks 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
When sand is poured on a rotating disc its angular velocity will _______.

Fill in the Blanks 1 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
The frequency of vibration v of a stretched string depends upon the load applied T, length l, and its mass per unit length μ. Find dimensionally the formula of frequency.

Short Answer 5 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.

Find a unit vector that is perpendicular to both A and B where A = 2i + j + k and B = i - j + 2k.

Short Answer 5 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
State and prove Newton's third law of motion.

Long Answer 5 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
May 2020 Discuss the Newton’s law of motion in detail.

May 2019
State and explain Newton’s law of motion.

May 2018
State and explain Newton’s laws of motion.
A ball is dropped from rest at a height of 12 m. If it loses 25% of its K.E. on striking the ground, what is the height to which it bounces? How do you account for this loss in K.E.?

Long Answer 5 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
What do you mean by banking of roads? Why is it done? A train has to negotiate a curve of radius 400 m. By how much is the outer rail raised as compared with the inner rail for a speed of 48 km/h? Given that the distance between the rails is 1 m.

Long Answer 5 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.

Derive an expression of terminal velocity for a spherical body of radius r, density ρ moving through a fluid of density σ.

Long Answer 5 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
Nov 2024 Derive a relation for terminal velocity of a solid spherical body falling through a viscous liquid.
A layer of ice 20 mm thick has formed on a pond. The temperature of air is -20°C. Find how long will it take for another 1 mm layer of ice to form. Given thermal conductivity of ice 0.008 cgs units. Density of ice = 1 g/cm3.

Long Answer 5 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
(a) Distinguish between streamline and turbulent flow. (b) State and prove Bernoulli's theorem.

Long Answer 10 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
What are ultrasonics? Explain how these are produced by piezoelectric method. Give two applications of ultrasonics.

Long Answer 10 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.

(a) What are systematic errors? Explain with example different types of systematic errors. How can each of these be minimized? (b) The Young's modulus y of a material is given by the relation y = Mgl/(πr^2l). If the percentage error in W (=Mg), L, r and l are 0.5%, 1%, 3%, 4% respectively, what is the percentage error in y?

Long Answer 10 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
(a) Distinguish among positive, negative and zero work done? Give example of each. (b) Define power. Obtain expression of power in terms of force and velocity. (c) What should be the power of an engine required to lift 90 tonnes of coal per hour from a mine whose depth is 200 m? g = 9.8 m/s2, 1 tonne = 1000 kg.

Long Answer 10 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.
(a) Define the terms torque and angular momentum. What is the relation between the two? (b) A man sitting at the centre of a rotating table with his arms outstretched has angular speed 40 rpm. If the man folds his hands to reduce his moment of inertia to 2/5 of its initial value, what will be the new angular speed?

Long Answer 10 Marks Dec-2011 • PSBTE DIPLOMA

Existing answers are stored as HTML; you can edit directly without converting to Markdown.

Explore all data

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 Dec-2011 (DIPLOMA 1st-2nd)

Physics Dec-2011

Solved Questions

Explore all data

PTU

PU Chandigarh

PSBTE

PSEB(School)

BFUHS

PU-PATIALA

GNDU

HPTSB

GTU

MDU

MRSPTU

CBSE(School)

BSEH

UBSE

PTU DISTANCE EDUCATION

Frequently Asked Questions