Home
Class 12
PHYSICS
Statement-1: Short wave band are used fo...

Statement-1: Short wave band are used for transmission fo radiowaves to a large distance.
Statement-2: Short waves are reflected from ionosphere.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • COMMUNICATION SYSTEM

    ERRORLESS |Exercise Ordinary|1 Videos

  • COMMUNICATION SYSTEM

    ERRORLESS |Exercise A R|1 Videos

  • ATOMIC AND NUCLEAR PHYSICS

    ERRORLESS |Exercise S ET|1 Videos

  • CURRENT ELECTRICITY

    ERRORLESS |Exercise Self Evaluation Test -19|23 Videos

Similar Questions

Explore conceptually related problems

Assertion : Short wave bands are used for transmission of radio waves to a large distance. Reason : Short waves are reflected by ionosphere

Electromagnetic waves of frequency ……. are reflected from ionosphere.

Statement 1: Long distance radio broadcasts use short wave bands. Statement 2: Short wavelength signals are reflected by the ionosphere.

Statement 1: In ground wave transmission the radio signals die out after travelling some distance. Statement-2: Radio signals have a very short wavelength and hence are scattered away by the dust particles and molecules of gases in the atmosphere.

Statement-1: Radio waves can be polarised. Statement-2: Sound waves in air are longitudinal in nature.

What is the maximum distance, the radiowaves can cover in a single reflection from ionosphere?

Statement-1 : Electromagnetic waves with frequencies smaller than the critical frequency of ionosphere cannot be used for communications using sky wave propagation. Statement-2: The refractive index of the ionosphere becomes very high for frequenceis higher than the criritcal frequency.