Question

An electromagnetic wave passes through space and its
equation is given by E = E₀ sin (⍵t – kx) where E is electric
field. Energy density of electromagnetic wave in space is
(a) 1/2 ℰ₀E₀²
(b) 1/4 ℰ₀E₀²
(c) ℰ₀E₀²
(d) 2ℰ₀E₀²

Answer 1

Explanation:

In the following situations, identify the agent exerting the force. Also, state

the effect of the force in each case.

(a) Squeezing a piece of lemon between the fingers to extract its juice.

(b) A person diving into a swimming pool.

(c) A labourer moving a loaded cart.

(0) A car coming to rest once its engine is switched off.

te) An athlete making a high jump to clear a bar kept at a certain height. this is not correct answer

Answer 2

Answer:

There are 12 months in a year. And get better mileage