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[VSQ]PHYSICS Q&A For All Competitive Exam||Set 11

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By DEBABRATA MONDAL

PHYSICS Q&A For All Competitive Exam

✔️Q.1. 

What is the unit of Radioactivity? 

👉Curie


✔️Q.2. 

What is the wavelength of visible spectrum? 

👉390-700 nanometres


✔️Q.3. 

One astronomical unit is the average distance between___? 

👉Earth & Sun


✔️Q.4. 

Number of basic S.I. units is ___. 

👉Seven (7)


✔️Q.5. 
Who firstly demonstrated experimentally the existence of electromagnetic wave?

👉Hertz


✔️Q.6. 
The working of the quartz crystal in the watch is based on which effect? 

👉Piezoelectric Effect


✔️Q.7. 
kilowatt hour is the unit of__? 

👉Energy


✔️Q.8. 
A simple device that is used to either break or complete the electric circuit, is called _____?

👉Switch


✔️Q.9. 
Where the value of ‘g’ (acceleration due to gravity) is maximum? 

👉At poles


✔️Q.10. 
Good conductors have many loosely bound __? 

👉Electrons




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