Advertisement Remove all ads

Let Us List Some of the Factors, Which Could Possibly Influence the Speed of Wave Propagation: The Speed of Light in Vacuum, - Physics

Let us list some of the factors, which could possibly influence the speed of wave propagation:

(i) Nature of the source.

(ii) Direction of propagation.

(iii) Motion of the source and/or observer.

(iv) Wave length.

(v) Intensity of the wave.

On which of these factors, if any, does

(a) The speed of light in vacuum,

Advertisement Remove all ads


The speed of light in a vacuum i.e., 3 × 108 m/s (approximately) is a universal constant. It is not affected by the motion of the source, the observer, or both. Hence, the given factor does not affect the speed of light in a vacuum.

Concept: Refraction and Reflection of Plane Waves Using Huygens Principle - Refraction of a Plane Wave
  Is there an error in this question or solution?
Advertisement Remove all ads


NCERT Class 12 Physics Textbook
Chapter 10 Wave Optics
Q 14.1 | Page 384
Advertisement Remove all ads
Advertisement Remove all ads

View all notifications

      Forgot password?
View in app×