Chapter 28 – Electromagnetic Waves
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The frequency of a light wave in a material is 2×10^14Hz and wavelength is 5000 Å. The refractive index of material will be
27
Oct
The frequency of a light wave in a material is 2×10^14Hz and wavelength is 5000 Å. The refractive index of material will be The frequency of a light wave in a material is 2×10^14Hz and wavelength is 5000 Å. The refractive index of material will be October 27, 2020 Category: AIIMS Last 24 Years Solved [...]
In a convex lens of focal length F, the minimum distance between an object and its real image must be :
27
Oct
In a convex lens of focal length F, the minimum distance between an object and its real image must be : In a convex lens of focal length F the minimum distance between an object and its real image must be : October 27, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics [...]
A far sighted person has his near point 50 cm. Find the power of lens he should use to see at 25 cm clearly.
27
Oct
A far sighted person has his near point 50 cm. Find the power of lens he should use to see at 25 cm clearly. A far sighted person has his near point 50 cm. Find the power of lens he should use to see at 25 cm clearly. October 27, 2020 Category: AIIMS Last 24 [...]
Two lens of focal length −20cm and +10cm are put in combination, find the power of the combination.
27
Oct
Two lens of focal length −20cm and +10cm are put in combination, find the power of the combination. find the power of the combination. Two lens of focal length −20cm and +10cm are put in combination October 27, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter [...]
For a person near point of vision is 100 cm. Then the power of lens he must wear so as to have normal vision, should be:
27
Oct
For a person near point of vision is 100 cm. Then the power of lens he must wear so as to have normal vision, should be: For a person near point of vision is 100 cm. Then the power of lens he must wear so as to have normal vision should be: October 27, 2020 [...]
A short linear object of length l. lies along the axis of a concave mirror, of focal length f, at a distance d from the pole of the mirror. The size of the image is then (nearly)
27
Oct
A short linear object of length l. lies along the axis of a concave mirror, of focal length f, at a distance d from the pole of the mirror. The size of the image is then (nearly) A short linear object of length l. lies along the axis of a concave mirror at a distance [...]
In a concave mirror, an object is placed a distance d1 from the focus and the real image is formed at a distance d2 from the focus. Then the focal length of the mirror is
27
Oct
In a concave mirror, an object is placed a distance d1 from the focus and the real image is formed at a distance d2 from the focus. Then the focal length of the mirror is an object is placed a distance d1 from the focus and the real image is formed at a distance d2 [...]
Light with an energy flux of 18 W/cm^2 falls on a non-reflecting surface at normal incidence. The pressure exerted on the surface is
27
Oct
Light with an energy flux of 18 W/cm^2 falls on a non-reflecting surface at normal incidence. The pressure exerted on the surface is Light with an energy flux of 18 W/cm^2 falls on a non-reflecting surface at normal incidence. The pressure exerted on the surface is October 27, 2020 Category: AIIMS Last 24 Years Solved [...]
A convex lens of refractive index 2/3 has a power of 2.5 D in air. If it is placed in a liquid of refractive index 2, then the new power of the lens is:
27
Oct
A convex lens of refractive index 2/3 has a power of 2.5 D in air. If it is placed in a liquid of refractive index 2, then the new power of the lens is: A convex lens of refractive index 2/3 has a power of 2.5 D in air. If it is placed in a [...]
The magnifying power of a compound- microscope increases with
27
Oct
The magnifying power of a compound- microscope increases with The magnifying power of a compound- microscope increases with October 27, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry Video Solutions , Chapter 16 - Waves , Chapter 28 - Electromagnetic Waves , Physics ,