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Chapter 16: Problem 2219
A Plane mirror produces a magnification of (A) 0 (B) \(+1\) (C) \(-1\) (D) \(\infty\)
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Interference is possible in (A) light waves only (B) sound waves only (C) both light and Sound waves (D) none of these
A ray of light passes from glass \((\mathrm{n}=1.5)\) to medium \((\mathrm{n}=1.60)\) The value of the critical angle of glass is (A) \(\sin ^{-1}(16 / 15)\) (B) \(\sin ^{-1} \sqrt{(16 / 15)}\) (C) \(\sin ^{-1}(1 / 2)\) (D) \(\sin ^{-1}(15 / 16)\)
A concave lens forms the image of an object such that the distance between the object and the image is \(10 \mathrm{~cm}\) and the magnification produced is \((1 / 4)\), the focal length of lens will be \(\mathrm{cm}\) (A) - 6.2 (B) \(-12.4\) (C) \(-4.4\) (D) \(-8.8\)
If a ray of light is incident on a plane mirror at an angle of \(30^{\circ}\) then deviation produced by a plane mirror is (A) \(60^{\circ}\) (B) \(90^{\circ}\) (C) \(120^{\circ}\) (D) \(150^{\circ}\)
The focal lengths of objective and the eye-piece of a compound microscope are \(F_{0}\) and \(F_{e}\) respectively. Then (A) \(\mathrm{F}_{0}>\mathrm{F}_{\mathrm{e}}\) (B) \(\mathrm{F}_{0}<\mathrm{F}_{\mathrm{e}}\) (C) \(\mathrm{F}_{0}=\mathrm{F}_{\mathrm{e}}\) (D) none of these
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