The part of the electromagnetic spectrum used in remote controls is MCQ with Answer and Explanation

Question

Share Report Error

The part of the electromagnetic spectrum used in remote controls is

A. Infrared

B. Ultraviolet

C. Microwave

D. Radio wave

Answer: Option A

Solution (By JKSSB Mock Tests)

TV remote uses IR. Not microwave (microwave oven).

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

Share Report

The force of attraction between two bodies of masses 1 kg each separated by 1 m is (G=6.67×10⁻¹¹)

A. 6.67 × 10⁻⁵ N

B. 6.67 × 10⁻⁷ N

C. 6.67 × 10⁻⁹ N

D. 6.67 × 10⁻¹¹ N

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option D

Explanation:
F = G×1×1/1² = 6.67×10⁻¹¹ N.

This question belongs to: Science Physics

Question #2

Share Report

The product of force and time is called

A. Impulse

B. Energy

C. Power

D. Work

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option A

Explanation:
Impulse = F Δt.

This question belongs to: Science Physics

Question #3

Share Report

The gravitational constant G was first measured by

A. Cavendish

B. Galileo

C. Kepler

D. Newton

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option A

Explanation:
Henry Cavendish used torsion balance to determine G.

This question belongs to: Science Physics

Explore All Physics MCQs