EASY
10th ICSE
IMPORTANT
Earn 100

Draw a displacement - distance graph for sound wave. Mark on it amplitude and wavelength.

Important Questions on Practice Papers for Revision

EASY
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 8>Q 7
Two sound waves in air have wavelength ratio 1:5 Find their frequency ratio.
EASY
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 8>Q 8
Define the term Specific heat capacity and state its SI unit.
EASY
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 8>Q 8

Define the term Latent heat of fusion and state its SI unit.

EASY
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 8>Q 8
1 kg of molten lead at its melting point is just kept in molten state by a heater of 25 W. If the heater switched off, the temperature of lead starts falling after  14 minutes, calculate specific latent heat of lead.
EASY
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 8>Q 8
Distinguish between boiling and evaporation.
MEDIUM
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 8>Q 8
The top of a lake gets frozen at a place where surrounding air is at a temperature of -200C. What will be the temperature of the layer of water in contact with the lower surface of the block and at the bottom of lake?
EASY
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 8>Q 8
Why is the core of an AC generator laminated?
EASY
10th ICSE
IMPORTANT
Self Study in Physics>Chapter 13 - Practice Papers for Revision>PRACTICE PAPER - 8>Q 9
A nichrome wire has a resistance 6 Ω. Find the resistance of another nichrome wire whose length is 6 times and area of cross-section is two times the first wire.