Which of the following types of electromagnetic waves is ...
Which of the following types of electromagnetic waves is used in night vision goggles?
Microwaves
Ultraviolet waves
Infrared waves
Radio waves
Correct answer is C
Infrared waves are used in night vision goggles because they can penetrate the darkness and allow people to see objects that are not visible to the naked eye
Radio wave Micro wave Infrared wave P Q R Gamma Ray The table above shows the com...
A cell of emf 2 V has an internal resistance of 0.5 Ω. A current of 0.4 A passes through an ex...
An electric motor primary converts ...
The relationship between the period T and the length l of a simple pendulum is T = 2\( \pi...