Wave Motion in Hindi

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Wave Motion in Hindi. We covered all the Wave Motion in Hindi in this post for free so that you can practice well for the exam.

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Wave Motion in Hindi Objective for Students

Which one of the following statements is not true about cosmic rays?

(A) They are electromagnetic waves

(B) They have a very short wavelength

(C) They are made of highly energetic charged particles

(D) They originate from the Sun

Option a - They are electromagnetic waves

What is the distance between two successive crests or successive troughs called?

(A) Amplitude

(B) Wavelength

(C) Frequency

(D) None of these

Option b - Wavelength

Which one of the following is used for determining the structure of a crystal?

(A) Gamma rays

(B) X-rays

(C) UV rays

(D) Visible lights

Option b - X-rays

Which of the following is a mechanical wave?

(A) Radio waves

(B) X-rays

(C) Light waves

(D) Sound waves

Option d - Sound waves

A radar that detects the presence of an enemy aircraft uses

(A) Light waves

(B) Radio waves

(C) Sound waves

(D) Ultrasound waves

Option b - Radio waves

Which of the following atmospheric layers is responsible for the deflection of radio waves?

(A) Troposphere

(B) Stratosphere

(C) Mesosphere

(D) Ionosphere

Option d - Ionosphere

Which waves cannot be transmitted through a vacuum?

(A) Light

(B) Heat

(C) Sound

(D) Electromagnetic

Option c - Sound

Long radio waves are reflected by which of the following layer of Earth's surface?

(A) Troposphere

(B) Ionosphere

(C) Tropopause

(D) Stratosphere

Option b - Ionosphere

Wireless communication is reflected back to the Earth's surface by the

(A) Troposphere

(B) Stratosphere

(C) Ionosphere

(D) Exosphere

Option c - Ionosphere

Cosmic rays

(A) are charged particles

(B) are uncharged particles

(C) can be charged as well as uncharged

(D) None of the above

Option a - are charged particles

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