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Chayanika Guin
Nov 16, 2013
what is the derivation of mirror formula of concave and convex mirror?
Nidhi Maithani
Dec 3, 2014
What is the difference between a virtual image and a real image?
Unmukt
Jan 19, 2014
uses of convex lens in daily life.,.
Some uses of convex lens are:
Piyush chavan
Mar 3, 2015
The absolute refractive indices of glass and water are 4/3 & 3/2, respectively. If speed of light in glass is 2x108 m/s , calculate the speed of light in vacum and water.( 2015 Boards Que. )
Venkatesh
Nov 21, 2013
why does the ray passing through the centre of curvature of a concave mirror retraces it's path.
why does the ray passing through the centre of curvature of a concave mirror retraces it's path.
V.m.hameed
Jan 28, 2015
If the speed of light in vacuum is 3x10⁸ m/s, find the speed of light in a medium of absolute refractive index 1.5.
Neeraja Babu Babu
Mar 3, 2015
If the image formed by a mirror for all positions of the object placed in front of it is always erect and diminished, what type of mirror is it ? Draw a ray diagram to justify your answer. Where and why do we generally use this type of mirror?
David
Dec 5, 2014
An object 5 cm in size is placed at a distance of 20 cm from the concave mirror of focal length 15 cm. At what distance from the mirror should a screen be placed to get a sharp image? Also find the height of the image.
Object-distance, u = – 20.0 cm;
Focal length, f = –15.0 cm;
Image-distance, v = ?
Image-size, h′ = ?
Mirror formula is ...
Sai Bhargav Karnati
Dec 4, 2014
What for concave and convex mirrors and lenses are used?
Lavanya N
Feb 7, 2014
A convex lens of focal length 20 cm produces 3 times magnified real image of an object. Find the position of the object
A convex lens of focal length 20 cm produces 3 times magnified real image of an object. Find the position of the object
there could be two position of object�
Chayanika Guin
Nov 16, 2013
what is the derivation of mirror formula of concave and convex mirror?
Nidhi Maithani
Dec 3, 2014
What is the difference between a virtual image and a real image?
Unmukt
Jan 19, 2014
uses of convex lens in daily life.,.
Some uses of convex lens are:
Piyush chavan
Mar 3, 2015
The absolute refractive indices of glass and water are 4/3 & 3/2, respectively. If speed of light in glass is 2x108 m/s , calculate the speed of light in vacum and water.( 2015 Boards Que. )
Venkatesh
Nov 21, 2013
why does the ray passing through the centre of curvature of a concave mirror retraces it's path.
why does the ray passing through the centre of curvature of a concave mirror retraces it's path.
V.m.hameed
Jan 28, 2015
If the speed of light in vacuum is 3x10⁸ m/s, find the speed of light in a medium of absolute refractive index 1.5.
Neeraja Babu Babu
Mar 3, 2015
If the image formed by a mirror for all positions of the object placed in front of it is always erect and diminished, what type of mirror is it ? Draw a ray diagram to justify your answer. Where and why do we generally use this type of mirror?
David
Dec 5, 2014
An object 5 cm in size is placed at a distance of 20 cm from the concave mirror of focal length 15 cm. At what distance from the mirror should a screen be placed to get a sharp image? Also find the height of the image.
Object-distance, u = – 20.0 cm;
Focal length, f = –15.0 cm;
Image-distance, v = ?
Image-size, h′ = ?
Mirror formula is ...
Sai Bhargav Karnati
Dec 4, 2014
What for concave and convex mirrors and lenses are used?
Lavanya N
Feb 7, 2014
A convex lens of focal length 20 cm produces 3 times magnified real image of an object. Find the position of the object
A convex lens of focal length 20 cm produces 3 times magnified real image of an object. Find the position of the object
there could be two position of object�