282246 The phenomenon involved in the reflection of radio-waves by ionosphere is similar to :

282247 Glass has refractive index ' \(\mu\) ' with respect to air and the critical angle for a ray of light going from glass to air is ' \(\theta\) '. If a ray of light is incident from air on the glass with angle of incidence ' \(\theta\) ', corresponding angle of refraction is

282268 Secondary rainbow in the atmosphere is

282248 An object is fixed at the bottom of a vessel and water is filled in the vessel upto a height of \(10 \mathrm{~cm}\). A plane mirror is placed at a height of 7 \(\mathrm{cm}\) from the surface of water in such a way that its reflecting surface faces the water. The distance of the image from the mirror is (Refractive index of water, \(n=1.33\) )

282246 The phenomenon involved in the reflection of radio-waves by ionosphere is similar to :

282247 Glass has refractive index ' \(\mu\) ' with respect to air and the critical angle for a ray of light going from glass to air is ' \(\theta\) '. If a ray of light is incident from air on the glass with angle of incidence ' \(\theta\) ', corresponding angle of refraction is

282268 Secondary rainbow in the atmosphere is

282248 An object is fixed at the bottom of a vessel and water is filled in the vessel upto a height of \(10 \mathrm{~cm}\). A plane mirror is placed at a height of 7 \(\mathrm{cm}\) from the surface of water in such a way that its reflecting surface faces the water. The distance of the image from the mirror is (Refractive index of water, \(n=1.33\) )

282246 The phenomenon involved in the reflection of radio-waves by ionosphere is similar to :

282247 Glass has refractive index ' \(\mu\) ' with respect to air and the critical angle for a ray of light going from glass to air is ' \(\theta\) '. If a ray of light is incident from air on the glass with angle of incidence ' \(\theta\) ', corresponding angle of refraction is

282268 Secondary rainbow in the atmosphere is

282248 An object is fixed at the bottom of a vessel and water is filled in the vessel upto a height of \(10 \mathrm{~cm}\). A plane mirror is placed at a height of 7 \(\mathrm{cm}\) from the surface of water in such a way that its reflecting surface faces the water. The distance of the image from the mirror is (Refractive index of water, \(n=1.33\) )

282246 The phenomenon involved in the reflection of radio-waves by ionosphere is similar to :

282247 Glass has refractive index ' \(\mu\) ' with respect to air and the critical angle for a ray of light going from glass to air is ' \(\theta\) '. If a ray of light is incident from air on the glass with angle of incidence ' \(\theta\) ', corresponding angle of refraction is

282268 Secondary rainbow in the atmosphere is

282248 An object is fixed at the bottom of a vessel and water is filled in the vessel upto a height of \(10 \mathrm{~cm}\). A plane mirror is placed at a height of 7 \(\mathrm{cm}\) from the surface of water in such a way that its reflecting surface faces the water. The distance of the image from the mirror is (Refractive index of water, \(n=1.33\) )