Chapter 1: Problem 23
The \(\ldots \ldots \ldots \ldots \ldots\) force is the force of mutual attraction between any two objects by virtue of their masses. (a) Weak (b) Electromagnetic (c) Nuclear (d) Gravitational
Chapter 1: Problem 23
The \(\ldots \ldots \ldots \ldots \ldots\) force is the force of mutual attraction between any two objects by virtue of their masses. (a) Weak (b) Electromagnetic (c) Nuclear (d) Gravitational
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Get started for freeOne planet is observed from two diametrically opposite point \(\mathrm{A}\) and \(\mathrm{B}\) on the earth the angle subtended at the planet by the two directions of observations is \(1.8^{\circ}\). Given the diameter of the earth to be about \(1.276 \times 10^{7} \mathrm{~m}\). What will be distance of the planet from the earth? (a) \(40.06 \times 10^{8} \mathrm{~m}\) (b) \(4.06 \times 10^{8} \mathrm{~m}\) (c) \(400.6 \times 10^{13} \mathrm{~m}\) (d) \(11 \times 10^{8} \mathrm{~m}\)
For measurement of astronomical distance ............. is used. (a) vernier callipers (b) spherometer (c) screw gauge (d) indirect method
Dimensional formula for calories is .............. (a) \(\mathrm{M}^{1} \mathrm{~L}^{1} \mathrm{~T}^{-2}\) (b) \(\mathrm{M}^{2} \mathrm{~L}^{1} \mathrm{~T}^{-2}\) (c) \(\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{-2}\) (d) \(\mathrm{M}^{2} \mathrm{~L}^{2} \mathrm{~T}^{-2}\)
The intercepted area of the spherical surface about the center is $0.025 \mathrm{~m}^{2}\( having diameter \)50 \mathrm{~cm}$ what will be solid angle? (a) \(4 \times 10^{-1} \mathrm{sr}\) (b) \(1 \times 10^{3} \mathrm{sr}\) (c) \(10^{-1} \mathrm{sr}\) (d) \(5 \times 10^{-1} \mathrm{sr}\)
Dimensional formula of latent heat is ........ (a) \(\mathrm{M}^{0} \mathrm{~L}^{2} \mathrm{~T}^{-2}\) (b) \(\mathrm{M}^{2} \mathrm{~L}^{0} \mathrm{~T}^{-2}\) (c) \(\mathrm{M}^{1} \mathrm{~L}^{2} \mathrm{~T}^{-1}\) (d) \(\mathrm{M}^{2} \mathrm{~L}^{2} \mathrm{~T}^{-1}\)
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