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The graph given below shows heat energy supplied against change in temperature
The graph given below shows heat energy supplied against change in temperature when no energy is lost to the surrounding. The slope…
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A radioactive element is kept in an evacuated chamber
A radioactive element is kept in an evacuated chamber. The rate of radioactive emission will: (a) decrease (b) increase (c) remain unchanged…
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The linear magnification produced by a concave lens is
The linear magnification ‘m’ produced by a concave lens is: (a) m < 1 (b) m > 1 (c) m = 1…
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During the melting of ice at 0 degree Celsius
During the melting of ice at 0°C: (a) energy is released and temperature remains constant (b) energy is absorbed and temperature remains…
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The potential difference between the terminals of a cell in a closed circuit is called
The potential difference between the terminals of a cell in a closed circuit is called: (a) terminal voltage (b) electromotive force (c)…
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Identify the option that displays the correct wiring with correct colour code
Identify the option that displays the correct wiring with correct colour code: (a) (b) (c) (d)
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The specific resistance of a wire depends on
The specific resistance of a wire depends on: (a) its length (b) the material of the wire (c) its cross-sectional area (d)…
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Which of the following is a class III lever
Which of the following is a class III lever? (a) Pair of scissors (b) Wheelbarrow (c) Crowbar (d) Human forearm
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When the stem of a vibrating tuning fork is pressed on a table
When the stem of a vibrating tuning fork is pressed on a table, the tabletop starts vibrating. These vibrations are definitely an…
Question
Assertion Ultraviolet radiations are scattered more as compared to microwave radiations
Assertion (A): Ultraviolet radiations are scattered more as compared to the microwave radiations. Reason (R): Wavelength of ultraviolet radiation is more than…