282288 A planoconvex lens has a maximum thickness of \(6 \mathrm{~cm}\). When placed on a horizontal table with the curved surface in contact with the table surface, the apparent depth of the bottommost point of the lens is found to be 4 \(\mathrm{cm}\). If the lens is inverted such that the plane face of the lens is in contact with the surface of the table, the apparent depth of the centre of the plane face is found to be \(\left(\frac{17}{4}\right) \mathrm{cm}\). The radius of curvature of the lens is :

282289 Wavelength of given light waves in air and in a medium are \(6000 \AA\) and \(4000 \AA\) respectively. The critical angle is :

282290 To a fish under water, viewing obliquely a fisherman standing on the bank of a lake, the man looks :

282291 Which one of the following is not associated with total internal reflection?

282315 A transparent cube of \(0.21 \mathrm{~m}\) edge contains a small air bubble. Its apparent distance when viewed through one face of the cube is \(0.10 \mathrm{~m}\) and when viewed from the opposite face is 0.04 \(m\). The actual distance of the bubble from the second face of the cube is

282288 A planoconvex lens has a maximum thickness of \(6 \mathrm{~cm}\). When placed on a horizontal table with the curved surface in contact with the table surface, the apparent depth of the bottommost point of the lens is found to be 4 \(\mathrm{cm}\). If the lens is inverted such that the plane face of the lens is in contact with the surface of the table, the apparent depth of the centre of the plane face is found to be \(\left(\frac{17}{4}\right) \mathrm{cm}\). The radius of curvature of the lens is :

282289 Wavelength of given light waves in air and in a medium are \(6000 \AA\) and \(4000 \AA\) respectively. The critical angle is :

282290 To a fish under water, viewing obliquely a fisherman standing on the bank of a lake, the man looks :

282291 Which one of the following is not associated with total internal reflection?

282315 A transparent cube of \(0.21 \mathrm{~m}\) edge contains a small air bubble. Its apparent distance when viewed through one face of the cube is \(0.10 \mathrm{~m}\) and when viewed from the opposite face is 0.04 \(m\). The actual distance of the bubble from the second face of the cube is

282288 A planoconvex lens has a maximum thickness of \(6 \mathrm{~cm}\). When placed on a horizontal table with the curved surface in contact with the table surface, the apparent depth of the bottommost point of the lens is found to be 4 \(\mathrm{cm}\). If the lens is inverted such that the plane face of the lens is in contact with the surface of the table, the apparent depth of the centre of the plane face is found to be \(\left(\frac{17}{4}\right) \mathrm{cm}\). The radius of curvature of the lens is :

282289 Wavelength of given light waves in air and in a medium are \(6000 \AA\) and \(4000 \AA\) respectively. The critical angle is :

282290 To a fish under water, viewing obliquely a fisherman standing on the bank of a lake, the man looks :

282291 Which one of the following is not associated with total internal reflection?

282315 A transparent cube of \(0.21 \mathrm{~m}\) edge contains a small air bubble. Its apparent distance when viewed through one face of the cube is \(0.10 \mathrm{~m}\) and when viewed from the opposite face is 0.04 \(m\). The actual distance of the bubble from the second face of the cube is

282288 A planoconvex lens has a maximum thickness of \(6 \mathrm{~cm}\). When placed on a horizontal table with the curved surface in contact with the table surface, the apparent depth of the bottommost point of the lens is found to be 4 \(\mathrm{cm}\). If the lens is inverted such that the plane face of the lens is in contact with the surface of the table, the apparent depth of the centre of the plane face is found to be \(\left(\frac{17}{4}\right) \mathrm{cm}\). The radius of curvature of the lens is :

282289 Wavelength of given light waves in air and in a medium are \(6000 \AA\) and \(4000 \AA\) respectively. The critical angle is :

282290 To a fish under water, viewing obliquely a fisherman standing on the bank of a lake, the man looks :

282291 Which one of the following is not associated with total internal reflection?

282315 A transparent cube of \(0.21 \mathrm{~m}\) edge contains a small air bubble. Its apparent distance when viewed through one face of the cube is \(0.10 \mathrm{~m}\) and when viewed from the opposite face is 0.04 \(m\). The actual distance of the bubble from the second face of the cube is

282288 A planoconvex lens has a maximum thickness of \(6 \mathrm{~cm}\). When placed on a horizontal table with the curved surface in contact with the table surface, the apparent depth of the bottommost point of the lens is found to be 4 \(\mathrm{cm}\). If the lens is inverted such that the plane face of the lens is in contact with the surface of the table, the apparent depth of the centre of the plane face is found to be \(\left(\frac{17}{4}\right) \mathrm{cm}\). The radius of curvature of the lens is :

282289 Wavelength of given light waves in air and in a medium are \(6000 \AA\) and \(4000 \AA\) respectively. The critical angle is :

282290 To a fish under water, viewing obliquely a fisherman standing on the bank of a lake, the man looks :

282291 Which one of the following is not associated with total internal reflection?

282315 A transparent cube of \(0.21 \mathrm{~m}\) edge contains a small air bubble. Its apparent distance when viewed through one face of the cube is \(0.10 \mathrm{~m}\) and when viewed from the opposite face is 0.04 \(m\). The actual distance of the bubble from the second face of the cube is