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[VSQ]PHYSICS Q&A For All Competitive Exam||Set 13

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By DEBABRATA MONDAL

PHYSICS Q&A For All Competitive Exam

✔️Q.1. 

The unidirectional property of a pn-junction is useful for its use as which thing?

👉Rectifier


✔️Q.2. 

The strongest force in the nature is ____? 

👉Nuclear Force


✔️Q.3. 

Which is the only natural magnet? 

👉Magnetite


✔️Q.4. 

We cannot see during a fog, because of ____. 

👉Scattering of light


✔️Q.5. 

In which medium sound travels faster ? 

👉Solid


✔️Q.6. 

Why does a liquid drop tend to assume a spherical shape? 

👉To minimize surface tension


✔️Q.7. 

What happens when soda water bottle falls freely? 

👉No bubbles form


✔️Q.8. 

Pure water freezes at what temperature? 

👉32 F


✔️Q.9. 

Why are Metals good conductor of heat than insulator? 

👉they contain free electrons


✔️Q.10. 

When some detergent is added to water, the surface tension___? 

👉Decreases



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