Electromagnetic Waves-Electromagnetic Waves & Characteristics (BITSAT Physics): Questions 1 - 2 of 2

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Question number: 1

» Electromagnetic Waves » Electromagnetic Waves & Characteristics

MCQ▾

Question

Lightning was discovered by –

Choices

Choice (4) Response

a.

Ohm

b.

Franklin

c.

Thomson

d.

Faraday

Question number: 2

» Electromagnetic Waves » Electromagnetic Waves & Characteristics

MCQ▾

Question

If luminous-efficiency of a lamp is 2lumenwatt and its luminous-intensity is 42 candela then, power of the lamp is –

Choices

Choice (4) Response

a.

138W

b.

62W

c.

76W

d.

264W

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