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Optics
is color spectrum polychromatic?
Optics
what color will appear when green light passes through a red glass?
Optics
A man wants to get a picture of a zebra.He photographed a white donkey after fitting a glass,with black stripes on to the lens of his camera.What photonwill he get?Explain.
Optics
A CLOCK HAVING MARKS INSTEAD OF NUMBERS ON ITS DIAL APPEARS TO INDICATE 4.35 WHEN VIEWED THROUGH A MIRROR.WHAT IS THE CORRECT TIME?
A MAN IS RUNNING AWAY FROM A PLANE MIRROR AT THE RATE OF 10 m/s. WITH WHAT SPEED IS HE RECEDING FROM HIS OWN IMAGE?
A MAN IS RUNNING AWAY FROM A PLANE MIRROR AT THE RATE OF 10 m/s. WITH WHAT SPEED IS HE RECEDING FROM HIS OWN IMAGE?
Optics
Find the effective power of the combination of two lenses in contact having powers (i) +5D and +3D (ii) +5D and -3D.
Optics
If a yellow light with a wavelength of 540nm shines on a double slits cuts 0.01mm apart, determine what angle you should look away from central fringe to see the second order fringe?
Optics
A concave mirror of radius 40cm lies on a horizontal table and water is filled in it upto a height 5cm.A small dust particle floats on th water surface at a point 'P' vertically above the point of contact of the mirror with the table.Locate the image of the dust particle as seen from a point directly above it.The refractive index of water is 1.3
Optics
1.
A combination of a converging and a diverging lens f
orms a real image of an object. How will the
position of the image change when the positions of th
e two lenses are interchanged? Which of
the lenses is of greater power?
A combination of a converging and a diverging lens f
orms a real image of an object. How will the
position of the image change when the positions of th
e two lenses are interchanged? Which of
the lenses is of greater power?
Optics
find the effective power of the combination of two lenses in contact having powers (1) +5D and +3D (2) +5D and -3D
Optics
Light with wavelength 648 nm in air is incident perpendicularly from air on a firm 8.76 nm thick and with refractive index 1.35. Part of the light is reflected from the first surface of the film, and part enters the film and is reflected back at the second surface, where the film is again in contact with air.
(a) How many waves are contained along the path of this second part of the light in its round trip through the film?
(b) What is the phase difference between these two parts of the light as they leave the film?
(a) How many waves are contained along the path of this second part of the light in its round trip through the film?
(b) What is the phase difference between these two parts of the light as they leave the film?
