Question

Bolometer is used to measure:

• A. Frequency
• B. Temperature
• C. Velocity
• D. Wavelength

Hint:

Bolometers are often used in scientific research to measure minute temperature changes due to radiation absorption.

Answer 1

The Correct Option is B

A bolometer is an instrument used to measure the energy of electromagnetic radiation, typically used to measure temperature changes. It detects the amount of heat energy absorbed by a material.
Thus, the correct answer is (B) Temperature.