K K Sharma Solutions for Chapter: Thermal Properties of Matter, Exercise 1: TOPICWISE QUESTIONS

Author:K K Sharma

K K Sharma Physics Solutions for Exercise - K K Sharma Solutions for Chapter: Thermal Properties of Matter, Exercise 1: TOPICWISE QUESTIONS

Attempt the practice questions on Chapter 1: Thermal Properties of Matter, Exercise 1: TOPICWISE QUESTIONS with hints and solutions to strengthen your understanding. Practice Book for MHT-CET Physics (Waves and Thermodynamics) solutions are prepared by Experienced Embibe Experts.

Questions from K K Sharma Solutions for Chapter: Thermal Properties of Matter, Exercise 1: TOPICWISE QUESTIONS with Hints & Solutions

EASY
MHT-CET
IMPORTANT

The amount of radiations emitted per second by unit area of a hollow container at 103 K will be ....... ,σ(Stefan's constant)=5.67 × 10-8 SI units

EASY
MHT-CET
IMPORTANT

If the temperature of a lamp is about 600 K, then the wavelength at which maximum emission takes place will be (Wien's constant b=3×103 mK)

EASY
MHT-CET
IMPORTANT

The rate of cooling of a sphere of thermal capacity 1000 Cal K-1 is 400 J s-1. Rate of fall of it's temperature is:

EASY
MHT-CET
IMPORTANT

A solid black sphere of radius R and a solid black cylinder of the same material, same radius and with height equal to the radius of the sphere, are at the same temperature. These are allowed to cool in the same surroundings. The ratio of the rate of fall of their temperature will be,

MEDIUM
MHT-CET
IMPORTANT

Two identical calorimeters of negligible heat capacities are filled with two liquids A and B whose densities are in the ratio 4:3. The ratio of times taken in cooling from 80 oC to 75 oC is 5:6. The ratio of their specific heats is

MEDIUM
MHT-CET
IMPORTANT

A blackened metal foil receives heat from a heated sphere placed at a distance r from it. It is found that the foil receives power P. If the temperature and the distance of the sphere are doubled, then, the power received by the foil will be,

MEDIUM
MHT-CET
IMPORTANT

The temperature of a room is 30 °C. A body kept in it, takes 4 min for cooling from 61 °C to 59 °C. The time taken by the body in cooling from 51 °C to 49 °C will be:

HARD
MHT-CET
IMPORTANT

A calorimeter of water equivalent 5×103kg having 25×103kg of water takes 3 minutes to cool from 28 °C to 21 °C. When it is filled with 30×103kg of tarpin oil, it takes 2 minutes to cool from 28 °C to 21 °C. Specific heat of tarpin oil will be?