The force acting on a particle of mass 1 kg moving in a circle of radius 0.5 m with speed 2 m/s is MCQ with Answer and Explanation

Question

Share Report Error

The force acting on a particle of mass 1 kg moving in a circle of radius 0.5 m with speed 2 m/s is

A. 2 N

B. 8 N

C. 4 N

D. 1 N

Answer: Option B

Solution (By JKSSB Mock Tests)

Centripetal force = m v²/r = 1×4/0.5 = 8 N.

This question belongs to: Science Physics

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Physics Questions

Question #1

LED works on the principle of

A. Electroluminescence

B. Photoelectric effect

C. Field emission

D. Thermionic emission

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option A

Explanation:
Recombination of electrons and holes emits light in forward-biased p-n junction.

This question belongs to: Science Physics

Question #2

Which of the following has the highest specific heat capacity?

A. Iron

B. Lead

C. Water

D. Copper

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option C

Explanation:
Water 4200 J/kg°C, used as coolant. Iron ~450, copper ~385, lead ~128.

This question belongs to: Science Physics

Question #3

Which of the following is a good conductor of electricity?

A. Copper

B. Wood

C. Glass

D. Rubber

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option A

Explanation:
Copper has free electrons, very low resistivity, excellent conductor. Glass, rubber, wood are insulators. Silver best conductor, but copper widely used. Graphite conducts but non-metal.

This question belongs to: Science Physics

Explore All Physics MCQs