The number of significant figures in 3.00 × 10⁸ is MCQ with Answer and Explanation

Question Report Error

The number of significant figures in 3.00 × 10⁸ is

A. 3

B. 2

C. 1

D. 8

Answer: Option A

Solution (By JKExamLibrary)

Scientific notation: 3.00 has three significant figures (3,0,0). Exponent part not counted. It's a clear way to show precision. 3×10⁸ has 1, 3.0×10⁸ has 2.

This question belongs to: Science Physics

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The characteristic of sound that distinguishes between two sounds of same pitch and loudness is

A. Frequency

B. Wavelength

C. Intensity

D. Quality

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Correct Answer: Option D

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This question belongs to: Science Physics

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Carnot efficiency η = 1 - T₂/T₁. If T₁=600K, T₂=300K, η is:

A. 75%

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Correct Answer: Option C

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This question belongs to: Science Physics

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