User Forum

Ask Your Question

Select Class:

chinmaymahajan from RUSTOMJIE INTERNATIONAL SCHOOL, JALGAON

Subject :Physics Class : Class 7

A clock works on the principle of

A periodic motion
B oscillation
C translation
D rotation

why cant oscillation be the answer

Post Your Answer

Apra Narain from dfds, Greater Noida

Subject :Physics Class : Class 7

On a cold day, it is hard to open the lid of a tight container. But when you gently heat the neck you can easily open the lid. Why?

A On heating glass expands and lid contracts.
B On heating lid expands more than the neck and thus slides easily.
C Neck becomes slippery on heating.
D Lid of the bottle cannot bear the heat.

Explain please

User Forum

View All Answers (0)

Submit Your Answers

Post Your Answer

View All Answers (0)

Submit Your Answers

Post Your Answer