Chapter 16: Problem 2231
In which of the following cases a man will not see image greater than himself. (A) convex mirror (B) concave mirror (C) plane mirror (D) none of these
Chapter 16: Problem 2231
In which of the following cases a man will not see image greater than himself. (A) convex mirror (B) concave mirror (C) plane mirror (D) none of these
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Get started for freeWhat is the time taken in seconds to cross a glass plate of thickness $6 \mathrm{~mm}\( and \)\mu=2.0$ by light ? (A) \(8 \times 10^{-11}\) (B) \(4 \times 10^{-11}\) (C) \(2 \times 10^{11}\) (D) \(16 \times 10^{-11}\)
In young's double Slit experiment the seventh maxima with wavelength \(\lambda_{1}\), is at a distance \(\mathrm{d}_{1}\) and the same maxima with wavelength \(\lambda_{2}\), is at a distance \(\mathrm{d}_{2}\) Then \(\left(\mathrm{d}_{1} / \mathrm{d}_{2}\right)=\) (A) \(\left(\lambda_{2} / \lambda_{1}\right)\) (B) \(\left(\lambda_{1}^{2} / \lambda_{2}^{2}\right)\) (C) \(\left(\lambda_{2}^{2} / \lambda_{1}^{2}\right)\) (D) \(\left(\lambda_{1} / \lambda_{2}\right)\)
\(1.6\) is a refractive index of plano-convex lens, then the radius of curvature of the curved surface is \(60 \mathrm{~cm}\). The focal length of the lens is \(\mathrm{cm}\) (B) \(10 \overline{0}\) (A) 50 (C) \(-50\) (D) \(-100\)
Light from two coherent Sources of the same amplitude \(\mathrm{A}\) and wavelength \(\lambda\), illuminates the Screen. The intensity of the central maximum is Io. If the sources were incoherent, the intensity at the same point will be (A) \(\left(\mathrm{I}_{0} / 2\right)\) (B) \(\left(\mathrm{I}_{0} / 4\right)\) (C) \(4 \mathrm{I}_{0}\) (D) \(2 \mathrm{I}_{0}\)
The distance between the first and sixth minima in the diffraction pattern of a single slit, it is \(0.5 \mathrm{~mm}\). The screen is \(0.5 \mathrm{~m}\) away from the Slit. If the wavelength of light is \(5000 \AA\), then the width of the slit will be \(\mathrm{mm}\) (D) \(1.0\) (A) 5 (B) \(2.5\) (C) \(1.25\)
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