MEDIUM
9th West Bengal Board
IMPORTANT
Earn 100

How erg is related with joule? Establish the relation.

Important Questions on Heat

EASY
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 6 - Heat>EXERCISE>Q 3.5.
What is relative humidity? 
MEDIUM
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 6 - Heat>EXERCISE>Q 3.6.
What is meant by anomalous expansion of water? 
MEDIUM
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 6 - Heat>EXERCISE>Q 3.7.
How dew is deposited?
MEDIUM
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 6 - Heat>EXERCISE>Q 3.8.
Why fog is mostly seen in industrial areas?
MEDIUM
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 6 - Heat>EXERCISE>Q 4.1.
What are the factors affecting the heat energy gained or lost by a body? 
MEDIUM
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 6 - Heat>EXERCISE>Q 4.2.
What are the factors responsible for copious deposition of dew? 
MEDIUM
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 6 - Heat>EXERCISE>Q 4.3.
Explain the effect of anomalous expansion of water on aqua life.
HARD
9th West Bengal Board
IMPORTANT
PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 6 - Heat>EXERCISE>Q 4.4.
 Draw and explain how the change of state of ice into steam can be represented graphically.