# velocity cannot be added to temperature which law of physics

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## "Velocity cannot be added to temperature". this is in accordance with which law of physics?

"Velocity cannot be added to temperature". this is in accordance with which law of physics?

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## "Velocity cannot be added to temperature". this is in accordance with which law of physics?

Updated On: 17-04-2022

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## Very Important Questions

Equipotential surfaces associated with an electric field which is increasing in magnitude along the x-direction are

Equipotential surfaces associated with an electric field which is increasing in magnitude along the x-direction are

Equipotential surfaces associated with an electric field which is increasing in magnitude along the x-direction are

stable oxide is obtained by heating the carbonate of the elements

Which of the following statements is incorrect about electrostatic precipitators ?

In which of the following equilibrium, `(K_c = K_p)` ?

## FAQs on Say-2017 Question Paper

PHYSICAL QUANTITY AND IT'S TYPES

Fundamental And Derived Quantity

System Of Units

Fundamental And Derived Units

Dimension Of A Physical Quantity

Dimension Of Angular Quantity

Conversion Of A Physical Quantity From One System To Another

Application Of Dimensional Analysis

Limitation Of Dimensional Analysis

Rounding Off

## Plus One Physics Previous Year Question Paper March 2019

Kerala Plus One Physics Previous Year Question Paper March 2019 with Answers Board SCERT Class Plus One Subject Physics Category Plus One Previous Year Question Papers Time: 2 Hours Cool off time: 15 Minutes Maximum: 60 Scores General Instructions to candidates: There is a ‘cool off time’ of 15 minutes in addition to the writing […]

## Plus One Physics Previous Year Question Paper March 2019

December 28, 2020 by Prasanna

## Kerala Plus One Physics Previous Year Question Paper March 2019 with Answers

**Board**SCERT

**Class**Plus One

**Subject**Physics

**Category**Plus One Previous Year Question Papers

Time: 2 Hours

Cool off time: 15 Minutes

Maximum: 60 Scores

General Instructions to candidates:

There is a ‘cool off time’ of 15 minutes in addition to the writing time.

Use the ‘cool off time’ to get familiar with the questions and to plan your answers.

Read the instructions carefully.

Read questions carefully before you answering.

Calculations, figures, and graphs should be shown in the answer sheet itself.

Malayalam version of the questions is also provided.

Give equations wherever necessary.

Electronic devices except non-programmable calculators are not allowed in the Examination Hall.

Answer any three questions from 1 to 4. Each carry one score. (3 × 1 = 3)

Question 1.

“The weak nuclear force is stronger than gravitational force.” State whether this statement is TRUE or FALSE.

Answer: True Question 2.

Position (x) – time (t) graphs of two objects A and B are shown below. At what time the objects meet?

Answer: 3 Sec Question 3.

Write any two properties of conservative force.

Answer:

The work done by the conservative force depends only on the end points.

The work done by conservative force in a closed path is zero

Question 4.

State first law of thermodynamics.

Answer:

According to first law of thermodynamics, heat supplied to a system is used to increase its internal energy and to do work.

Answer any six questions from 5 to 11. Each carries two scores. (6 × 2 = 12)

Question 5.

Draw a graph showing the variation of volume of a given mass of water with temperature from 0°C. In the graph mark the temperature at which water has maximum density.

Answer:

Question 6.

What is sublimation? Write an example for a sublime material.

Answer:

Transition of solid into gas without forming liquid is called sublimation.

Example: Camphor Question 7.

The lengths of two bodies measured by a metre scale are

I1 = (20 ± 0.5) cm and

I2 = (15 ± 0.2) cm. Calculate:

a) Sum of these lengths.

b) Difference between the lengths.

Answer:

i) l1 = 20, Δl1 = 05, l2= 15, Δl2 = 02

Sum of length l = l1 + l2

= 20 + 15 =35

error Δl = Δl1 + Δl2

= 0.5 + 0.2 = 0.7 ∴ Sum = 35+ 0.7

ii) Difference = l1 – l2

= 20 – 15 = 5 error = Δl1 + Δl2 = 0.5 + 0.2 = 0.7

∴ Difference = 5 + 0.7 = 5 ± 0.7

Question 8.

Match the following.

A B a) Torque ( τ ¯

) i) Perpendicular to

r ¯ and P ¯

b) Angular Momentum (

L ¯ ) ii) Σ( F ¯ )

c) Rotational equilibrium iii)

ω ¯ × r ¯ d) Linear velocity v ¯ iv) r ¯ × F ¯ v) Σ τ ¯ Answer: Torque – r ¯ × F ¯

Angular momentum – Perpendicular to

r ¯ and P ¯

Rotational equilibrium –

Σ τ ¯ = 0 Linear velocity – ω ¯ × r ¯ Question 9.

Derive an expression for escape speed from a planet.

Answer:

Escape Speed: The minimum speed with which a body is projected so that it never returns to the earth is called escape speed or escape velocity.

Expression for escape speed:

Force on a mass m at a distance r from the centre of earth =

GMm r 2

Work done for giving small displacement dr,

dw = GMm r 2 dr

Work done in taking the body to infinity from surface of earth,

Question 10.

A wave travelling along a string is described by, y (x, t) = 0.005 Sin(80.0x – 3.0t) in which the numerical constants are in SI units. Calculate the wavelength and frequency of the wave.

Answer:

The equation for wave

y(x, t) = 0.005 Sin (80.0x – 3.01)

Compare this equation with standard wave equation.

y(x, t) = A sin (kx – wt)

We get kx = 80x 2π λ = 80 λ = 0.0785 m ωt = 3t ω = 3 2πf = 3 f = 0.48 Hz Question 11.

a) Draw diagrams showing the first and third harmonics produced in a closed pipe.

b) Write the equation for the fundamental frequency in terms of length of the pipe.

## Oswaal CBSE Question Bank Class 11 (Set of 3 Books) Physics, Chemistry ...

• Strictly as per the new term wise syllabus for Board Examinations to be held in the academic session 2021-22 for classes 11 & 12 • Multiple Choice Questions based on new typologies introduced by the board- I. Stand- Alone MCQs, II. MCQs based on Assertion-Reason III. Case-based MCQs. • Revision Notes for in-depth study • Mind Maps & Mnemonics for quick learning • Include Questions from CBSE official Question Bank released in April 2021 • Answer key with Explanations • Concept videos for blended learning (science & maths only)

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## Oswaal CBSE Question Bank Class 11 (Set of 3 Books) Physics, Chemistry, Biology (For 2022 Exam)

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• Strictly as per the new term wise syllabus for Board Examinations to be held in the academic session 2021-22 for classes 11 & 12

• Multiple Choice Questions based on new typologies introduced by the board-

I. Stand- Alone MCQs,

II. MCQs based on Assertion-Reason

III. Case-based MCQs.

• Revision Notes for in-depth study

• Mind Maps & Mnemonics for quick learning

• Include Questions from CBSE official Question Bank released in April 2021

• Answer key with Explanations

• Concept videos for blended learning (science & maths only)

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Başlık Oswaal CBSE Question Bank Class 11 (Set of 3 Books) Physics, Chemistry, Biology (For 2022 Exam)

Yazar Oswaal Editorial Board

Yayıncı Oswaal Books and Learning Pvt Ltd, 2021

ISBN 935423772X, 9789354237720

Uzunluk 1576 sayfa

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