Electromagnetic Spectrum & Applications: JEE Questions & Solutions

Match the LIST-I with LIST-II: | List-I | | List-II | | |---|---|---|---| | A. | Radio-wave | I. | is produced by Magnetron valve | | B. |…

A point source is kept at the center of a spherically enclosed detector. If the volume of the detector is increased by 8 times, the…

Arrange the following in the ascending order of wavelength (λ): (A) Microwaves (λ₁) (B) Ultraviolet rays (λ₂) (C) Infrared rays (λ₃) (D)…

If a source of electromagnetic radiation having power 15 kW produces 10¹⁶ photons per second, the radiation belongs to a part of spectrum…

Match List-I with List-II. List-I List-II A. Microwaves I. Physiotherapy B. UV rays II. Treatment of cancer C. Infra-red rays III. Lasik…

Match List-I with List-II: | List I | List II | |---|---| | A. Microwaves | I. Radioactive decay of the nucleus | | B. Gamma rays | II.…

By what percentage will the transmission range of a TV tower be affected when the height of the tower is increased by 21%?

For an amplitude modulated wave, the minimum amplitude is 3 V, while the modulation index is 60%. The maximum amplitude of the modulated…

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R. Assertion A: EM waves used for…

Match List I of Electromagnetic waves with the corresponding wavelength range: | List I | List II | | --- | --- | | (A) Microwave | (I) 400…