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Popular Questions
- A man runs towards a mirror at a speed 15m/s The speed of the image relative to the man is
- a person is in a room whose ceilling and two adjacent walls are mirrors.How many images are formed
- A man having height 6 m. He observes image of 2m height erect, then mirror used is
- a transparent solid cylindrical rod has a refractive index of
- a thin glass (refractive index 1.5) lens has optical power of
- Focal length of a plane mirror is
- Two plane mirrors are perpendicular to each other. A ray after suffering reflection from the two mirrors will be
- Two plane mirrors arc inclined at an angle . It is found that a ray incident on one mirror at any angle is rendered parallel to it..
- A light beam is being reflected by using two mirrors, as in a periscope used in submarines
- The earth radiates in the infra-red region of the spectrum. The spectrum is correctly given by
- The magnifying power or a telescope is m. If the focal length of the eye piece is halved, then its magnifying power is
- the refractive index of glass is 1.520 for red light and
- A real object is placed at a distance f from the pole of a convex mirror, in front of the convex mirror. If focal length of the mi..
- A man runs towards mirror at a speed of
- A man length h requires a mirror
- A small object is placed 10cm infront of a plane mirror
- An object is at a
- an object 2.4 m in front of a lens forms a sharp image on a film
- A beam of light from a source L is incident normally
- Where should a person stand straight from the pole of a convex mirror of focal length 2.0 m on its axis, so that the image formed ..
- VAn object is placed at a distance 20 cm from the pole of a convex mirror of focal length 20 cm. The image is produced at
- two point white dots are 1mm apart on a block paper on a block paper.
- An astronomical telescope has objective and eye piece lenses of powers 0.5 D and 20 D. respectively. What will be its magnifying p..
- To get three images of a single object, one should have two plane mirrors at an angle of
- Two plane mirrors are at right angles to each other
- Two mirrors at an angle
- two coils are placed closed to each other. the mutual
- A plane mirror reflects is a pencil of light to form a real image
- The far point of myopia person is 80 cm in front of his eye. The power of the lens required to see very distant objects is
- A ray of light is incident on a plane mirror at an angle of 60 degree . The angle of deviation produced by the mirror is
- Which mirror is to be used to obtain a parallel beam of light from a small lamp?
- Two plane mirror are inclined to each other such that a ray of light incident on the first mirror
- A thick plane mirror shows a number of images of the filament of an electric bulb
- The power of plane mirror is
- A man is 180cm tall and his eyes are 10cm below the top of his head
- in an oscillating lc circuit, the maximum charge in the capacitor is q. the charge on the capacitor when the
- When light wave suffres reflaction at the interface from air to glass
- In order to increase the angular magnification of a simple microscope, one should increase
- A plane mirror produces a magnification of
- If sound travelling at 340 ms^-1 enters water where its speed becomes 1480 ms-^-1, then critical angle for total internal reflecti..
