A light wave can travel
(a) in vacuum
(b) in vacuum only
(c) in a material medium
(d) in a material medium only

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Solution

(a) in vacuum
(c) in a material medium

Light is an electromagnetic wave that can travel through vacuum or any optical medium.

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A light wave can travel (a) in vacuum (b) in vacuum only (c) in a material medium (d) in a material medium only

(a) in vacuum (c) in a material medium Light is an electromagnetic wave that can travel through vacuum or any optical medium.

A light wave can travel
(a) in vacuum
(b) in vacuum only
(c) in a material medium
(d) in a material medium only

(a) in vacuum
(c) in a material medium

Light is an electromagnetic wave that can travel through vacuum or any optical medium.