CHSL 21 30-05-2022 Shift 1


Question 1

Which type of radiation designates a part of the electromagnetic spectrum with frequencies approximately from 300 GHz to 3 kHz, or equivalent, wavelengths approximately from 1 mm to 100km?
निम्नलिखित में से किस प्रकार का विकिरण, लगभग 300 GHz से 3 kHz की आवृत्ति वाले, या समतुल्‍य, लगभग 1 mm से 100 km तक की तरंगदैर्घ्य वाले विद्युत चुम्बकीय स्पेक्ट्रम के एक भाग को निर्दिष्ट करता है?

Options

A

Radio waves

Radio waves

B

Ultraviolet rays

Ultraviolet rays

C

Infrared waves

Infrared waves

D

Microwaves

Microwaves


Solution:

Correct Answer:

A

Radio waves

रेडियो तरंगें


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