Chapter 18: Problem 33
Rays are converging towards a convex mirror, final image will be (A) Real (B) Virtual (C) May be real or virtual (D) Image will not form
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Chapter 18: Problem 33
Rays are converging towards a convex mirror, final image will be (A) Real (B) Virtual (C) May be real or virtual (D) Image will not form
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If two mirrors are kept at \(60^{\circ}\) to each other, then the number of images formed by them is \([\mathbf{2 0 0 2}]\) (A) 5 (B) 6 (C) 7 (D) 8
A plane mirror is placed at the bottom of a tank containing a liquid of refractive index \(\mu, P\) is a small object at a height \(h\) above the plane mirror. An observer \(O\), vertically above \(P\), outside the liquid, observers \(P\) and its image in the mirror. The apparent distance between object and its image will be Plane mi (A) \(2 \mu h\) (B) \(\frac{2 h}{\mu}\) (C) \(\frac{2 h}{\mu-1}\) (D) \(h\left(\frac{1}{\mu}\right)\)
Two convex lenses placed in contact form the image of a distant object at \(P\). If the lens \(B\) is moved to the right, the image will (A) move to the left. (B) move to the right. (C) remain at \(P\). (D) move either to the left or right, depending upon focal lengths of the lenses.
Focal length of an equiconvex lens is \(20 \mathrm{~cm}\). If we cut it once perpendicular to principle axis, and then along principal axis, then focal length of each part will be (A) \(20 \mathrm{~cm}\) (B) \(10 \mathrm{~cm}\) (C) \(40 \mathrm{~cm}\) (D) \(5 \mathrm{~cm}\)
A green light is incident from the water to the air-water interface at the critical angle \((\theta)\). Select the correct statement. (A) The entire spectrum of visible light will come out of the water at an angle of \(90^{\circ}\) to the normal. (B) The spectrum of visible light whose frequency is less than that of green light will come out to the air medium. (C) The spectrum of visible light whose frequency is more than that of green light will come out to the air medium. (D) The entire spectrum of visible light will come out of the water at various angles to the normal.
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