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Class: Class 10

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Question

Specific heat capacity of a substance X is 1900 J kg−1 °C−1 means: (a) Substance X absorbs 1900 J for 1°C rise…

14/09/2026

Question

Specific latent heat of a substance: (a) is directly proportional to the mass (b) is directly proportional to the change in the…

14/09/2026

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If the strength of the current flowing through a wire is increased, the strength of the magnetic field produced by it: (a)…

14/09/2026

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Choose the correct relation for e.m.f. (ε) and terminal voltage V: (a) ε = V [always] (b) V > ε [always] (c)…

14/09/2026

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When a current I flows through a wire of resistance R for time t then the electrical energy produced is given by:…

14/09/2026

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Two notes are produced from two different musical instruments, such that they have same loudness and same pitch. The produced notes differ…

14/09/2026

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When a body vibrates under a periodic force, the vibrations of the body are always: (a) natural vibrations (b) damped vibrations (c)…

14/09/2026

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A concave lens produces only …………… image. (a) real, enlarged (b) virtual, enlarged (c) virtual, diminished (d) real, diminished

14/09/2026

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Speed of blue light in water is: (a) more than green light (b) more than orange light (c) more than violet light…

14/09/2026

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Which of the following radiations suffer maximum deflection in a magnetic field? (a) Alpha radiations (b) Beta radiations (c) Gamma radiations (d)…

14/09/2026