282464 A convex lens made of glass has focal length \(0.15 \mathrm{~m}\) in air. If the refractive index of glass is \(\frac{3}{2}\) and that of water is \(\frac{4}{3}\), the focal length of lens when immersed in water is

282467 An object \(O\) is placed between a concave mirror and a plane mirror so that the first image in both the mirrors coincide at \(I\). What should be the position of centre of curvature of concave mirror?

282468 A lens of refractive index \(\mu\) becomes a lens of focal length \(f^{\prime}\) when immersed in a liquid of refractive index \(\mu^{\prime}\). If the focal length of the lens in air \(s\) is \(f\), then \(f^{\prime}\) is

282469 A convex lens of focal length \(0.12 \mathrm{~m}\) produces an image, which is three times as long as the object. The distance between the object and the lens for a real image

282470 Figure shows an irregular block of material of refractive index \(\sqrt{2}\). A ray of light strikes the face \(A B\) as shown in figure. After refraction, it is incident on a spherical surface \(C D\) of radius of curvature \(0.4 \mathrm{~m}\) and enters a medium of refractive index 1.514 to meet \(P Q\) at \(E\). Find the distance \(\mathrm{OE}\) up to two places of decimal.

282464 A convex lens made of glass has focal length \(0.15 \mathrm{~m}\) in air. If the refractive index of glass is \(\frac{3}{2}\) and that of water is \(\frac{4}{3}\), the focal length of lens when immersed in water is

282467 An object \(O\) is placed between a concave mirror and a plane mirror so that the first image in both the mirrors coincide at \(I\). What should be the position of centre of curvature of concave mirror?

282468 A lens of refractive index \(\mu\) becomes a lens of focal length \(f^{\prime}\) when immersed in a liquid of refractive index \(\mu^{\prime}\). If the focal length of the lens in air \(s\) is \(f\), then \(f^{\prime}\) is

282469 A convex lens of focal length \(0.12 \mathrm{~m}\) produces an image, which is three times as long as the object. The distance between the object and the lens for a real image

282470 Figure shows an irregular block of material of refractive index \(\sqrt{2}\). A ray of light strikes the face \(A B\) as shown in figure. After refraction, it is incident on a spherical surface \(C D\) of radius of curvature \(0.4 \mathrm{~m}\) and enters a medium of refractive index 1.514 to meet \(P Q\) at \(E\). Find the distance \(\mathrm{OE}\) up to two places of decimal.

282464 A convex lens made of glass has focal length \(0.15 \mathrm{~m}\) in air. If the refractive index of glass is \(\frac{3}{2}\) and that of water is \(\frac{4}{3}\), the focal length of lens when immersed in water is

282467 An object \(O\) is placed between a concave mirror and a plane mirror so that the first image in both the mirrors coincide at \(I\). What should be the position of centre of curvature of concave mirror?

282468 A lens of refractive index \(\mu\) becomes a lens of focal length \(f^{\prime}\) when immersed in a liquid of refractive index \(\mu^{\prime}\). If the focal length of the lens in air \(s\) is \(f\), then \(f^{\prime}\) is

282469 A convex lens of focal length \(0.12 \mathrm{~m}\) produces an image, which is three times as long as the object. The distance between the object and the lens for a real image

282470 Figure shows an irregular block of material of refractive index \(\sqrt{2}\). A ray of light strikes the face \(A B\) as shown in figure. After refraction, it is incident on a spherical surface \(C D\) of radius of curvature \(0.4 \mathrm{~m}\) and enters a medium of refractive index 1.514 to meet \(P Q\) at \(E\). Find the distance \(\mathrm{OE}\) up to two places of decimal.

282464 A convex lens made of glass has focal length \(0.15 \mathrm{~m}\) in air. If the refractive index of glass is \(\frac{3}{2}\) and that of water is \(\frac{4}{3}\), the focal length of lens when immersed in water is

282467 An object \(O\) is placed between a concave mirror and a plane mirror so that the first image in both the mirrors coincide at \(I\). What should be the position of centre of curvature of concave mirror?

282468 A lens of refractive index \(\mu\) becomes a lens of focal length \(f^{\prime}\) when immersed in a liquid of refractive index \(\mu^{\prime}\). If the focal length of the lens in air \(s\) is \(f\), then \(f^{\prime}\) is

282469 A convex lens of focal length \(0.12 \mathrm{~m}\) produces an image, which is three times as long as the object. The distance between the object and the lens for a real image

282470 Figure shows an irregular block of material of refractive index \(\sqrt{2}\). A ray of light strikes the face \(A B\) as shown in figure. After refraction, it is incident on a spherical surface \(C D\) of radius of curvature \(0.4 \mathrm{~m}\) and enters a medium of refractive index 1.514 to meet \(P Q\) at \(E\). Find the distance \(\mathrm{OE}\) up to two places of decimal.

282464 A convex lens made of glass has focal length \(0.15 \mathrm{~m}\) in air. If the refractive index of glass is \(\frac{3}{2}\) and that of water is \(\frac{4}{3}\), the focal length of lens when immersed in water is

282467 An object \(O\) is placed between a concave mirror and a plane mirror so that the first image in both the mirrors coincide at \(I\). What should be the position of centre of curvature of concave mirror?

282468 A lens of refractive index \(\mu\) becomes a lens of focal length \(f^{\prime}\) when immersed in a liquid of refractive index \(\mu^{\prime}\). If the focal length of the lens in air \(s\) is \(f\), then \(f^{\prime}\) is

282469 A convex lens of focal length \(0.12 \mathrm{~m}\) produces an image, which is three times as long as the object. The distance between the object and the lens for a real image

282470 Figure shows an irregular block of material of refractive index \(\sqrt{2}\). A ray of light strikes the face \(A B\) as shown in figure. After refraction, it is incident on a spherical surface \(C D\) of radius of curvature \(0.4 \mathrm{~m}\) and enters a medium of refractive index 1.514 to meet \(P Q\) at \(E\). Find the distance \(\mathrm{OE}\) up to two places of decimal.