Write true or false for the statement
A ray of light when passes from glass to air, bends towards the normal.
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As light rays pass from air into a glass prism, are they refracted towards or away from the normal ?
Solution : Towards the normal
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As light rays emerge from a glass prism into air, are they refracted towards or away from the normal ?
Solution : Away from the normal
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Name the plant part : (a) which bends in the direction of gravity but away from light (b) which bends towards light but away from the force of gravity
(a) Root. (b) Stem.
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A ray of light passes from medium 1 to medium 2. Which of the following quantities of the refracted ray
Speed, intensity and wavelength
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A light ray passes from to (a) air, (b) glass. In each case state, how does the speed of light change.
(a) Air (its refractive index is less than that of water) (b) Glass (its refractive index is more than that of water)
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A monochromatic ray of light passes from air to glass. The wavelength of light in air is λ, the speed of light in air is
(a) The relation between speed of light in air c and in glass v is given by c/v = =1.5 (b) The wavelength of light in glass (λ1) μ = λ/λ1 = λ/1.5
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When a ray of light from air enters a denser medium, it: (a) bends away from the normal
The ray of light bends towards the normal. Reason: As the speed of light decreases in the denser medium, it bends towards the normal.
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A ray of light moving from an optically rarer to a denser medium 1. bends away from the normal
bends towards the normal
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Match the following :(a) A light ray passes from air to glass 1. speeds up
Column A Column B (a) A light ray passes from air to glass 5.primary colours (b) A light ray passes from air to glass 1. speeds up (c) Virtual image 4. plane mirror (d) Red rose 2. reflects red...
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A ray of light after reflection from a mirror is known as 1. reflected ray 2. normal 3. incident ray 4. refracted ray
1. reflected ray
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