Physics - 01

Physics [Science] plays a major role for candidates preparing for competitive exams like University Assistant. Get instant Questions of Science - Physics from here. Kerala PSC Helper is a one source destination for all Physics Questions to crack competitive exams conducted by Kerala Public Service Commission.
1. What is the unit of electric current?
Answer :- Ampere

2. Which metal is the best conductor of electricity at room temperature?
Answer :- Silver

3. If the length of a wire is doubled, what is the change in its resistivity?
Answer :- Remains same

4. A controlled chain reaction takes place in a ..............
Answer :- Nuclear reactor

5. How many times the nuclear radius is smaller than atomic radius?
Answer :- 10,000

6. Which instrument is used to measure the potential difference?
Answer :- Voltmeter

7. The commonly used safety fuse wire is made of:
Answer :- Alloy of Tin and Lead

8. If a mirror has a focal length of +10 cm, its is a ............. mirror
Answer :- Concave Mirror

9. Which colour is produced by mixing of blue and green?
Answer :- Cyan

10. For which mirror the image is virtual, erect and small in size, whtever the position of the object?
Answer :- Convex

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