Physics
Which is not vector quantity _______?
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Radioactivity was discovered by ——–.
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In obtaining an X-ray photograph of our hand we use the principle of______________?
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Which of the following is not a donor atom?
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Number of tangents to a circle?
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3D viewing device
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When sound waves travel from air to water which of the following quantities remains unchanged?
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Length, mass, time, intensity of light and amount of substance are examples of ____________?
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The S.I. unit of refractive index is _______?
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