ABVP CET 2022-23

A faulty thermometer ha its fixed point marked 5 and 95. If the temperature of a body as shown on the Celsius scale is 40, then its temperature shown on this faulty thermometer is

• 39

• 40

• 41

• 44.4

• 4

• 40

• -4

• -40

A beaker is completely filled with water at 40C. It will overflow if

• Heated above 4 degree C

• Cooled below 4 degree C

• Both Heated and Cooled below 4 degrees

• Neither of them

A lead bullet of 10g travelling at 300m/s strikes against a block of wood and comes to rest. Assuming 50% of heat is absorbed by the bullet, the increase in its temperature is in degree C. Specific Heat of wood is 150 J/kgK

• 100

• 125

• 150

• 200

Liquid oxygen at 50K is heated to 300K at constant pressure of 1atm. Which one of the following graphs represents the variation of temperature with time?

• 
• 
• 

When a metallic bar is heated from 0 degree C to 100 degree C, its length increases by 0.05%. What is the coefficient of linear expansion of the metal?

Two uniform brass rods A and B of length l and 2l and radii 2r and r respectively are heated to the same temperature. The ratio of the increase in the length of A to that of B is

• 1:1

• 1:2

• 1:4

• 2:1

The temperature of a body on kelvin scale is found to be x K. when it is measured by Fahrenheit thermometer, it is found to be x^0  F, then the value of x is

• 40

• 313

• 574.25

• 301.25

Two rods of different materials having coefficients of thermal expansions 𝛼1, 𝛼2 and Young’s moduli 𝑌1, 𝑌2 respectively are fixed between two rigid massive walls. The rods are heated such that they undergo the same increase in temperature. There is no bending of the rods. If 𝛼1: 𝛼2=2:3, the thermal stresses developed in the two rods are equal provided 𝑌1: 𝑌2 is equal to

• 2:3

• 1:1

• 3:2

• 4:9