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Optics
Does the refractive index of glass depends on colour of light?If yes why?
If no why?
If no why?
Optics
If a single lens forms a virtual image of an object then
a) the lens must be a converging lens
B)the image must be inverted
C) the lens must be a diverging lens
D) the lens could be either a diverging or converging lens
a) the lens must be a converging lens
B)the image must be inverted
C) the lens must be a diverging lens
D) the lens could be either a diverging or converging lens
Optics
A small strip of plane mirror A is set with it's plane normal to the principal axis of a convex mirror B and placed 15 cm in front of B which it partly covers. An object is placed 30 cm from A and two virtual image formed by reflection in A and B coincide without parallax. FInd the radius of curvature of B.
Optics
A small strip of plane mirror A is set with it's plane normal to the principal axis of a convex mirror B and placed 15 cm in front of B which it partly covers. An object is placed 30 cm from A and the two visual image formed by reflrction in A and B coincide without parallax. Find the radius of curvative of B.
Optics
Light from a mercury lamp falls on two slits separated by 0.6 mm, and the resulting interference pattern is observed on a screen 2.5 m away from the slits. If the adjacent bright fringes are separated by 2.27 mm, what is the wavelength of the light?
Optics
Two slits are spaced 0.3 mm apart and are placed 50cm from a screen. Suppose the entire apparatus is immersed in water. What is the distance between the second and third dark lines of the interference pattern when the slits are illuminated with the light of 600 nm wavelength?
Optics
1. Calculate the wavelength of the electromagnetic radiation with frequency 3x1014 Hz. What is the type of radiation (Gamma rays, Visible, IR etc.)?
Optics
The sodium lamp used in a physics laboratory gives out light uniformly.suppose that the lamp uses 40W. Calculate the magnitude of electric field?
Optics
Why do edges of a thin film appear dark when illuminated by monochromatic light?
Optics
A car is traveling at 40 mi/h when the driver slams on the brakes coming to rest over a distance of 68 meters. What is the acceleration of the car in m/s2?
