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Ask Reflection By Spherical Mirrors question free ×
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Reflection By Spherical Mirrors Free Doubts and Solutions

CBSE - XII Science - Physics - Ray Optics and Optical Instruments

An object 4cm in size, is placed at 25cm infront of a concave mirror of focal length 15cm. At what distance from the mirror whould a screen be placed in order to obtain a sharp image?Find the nature and the size of the image.  

Asked by amarapurevathi 5th October 2018, 12:22 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

Use the mirror formula to show that  a)an object placed between f and 2f of a concave mirror produces a real image  beyond 2f b)a convex mirror always produces a virtual image independent of the location of the object c)an object placed between the pole and focus of a concave mirror produces virtual and enlarged image

Asked by vasturushi 2nd February 2018, 6:58 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

how can the real image of an object be obtained with a convex mirror?

Asked by vinodjoshi112233 10th December 2017, 8:13 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

A mirror is inclined at an angle of theta with the horizontal. If a ray of light is incident at an angle theta with the mirror ,then the angle made by reflected ray with the horizontal is

Asked by ajeet 14th October 2017, 11:05 AM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

the wall of the room is covered with a perfect plane mirror and two movie films are made one recording the movement of a man and the other of his mirror image  while viewing the film later can an outsider tell which is which ?

Asked by vinodjoshi112233 20th September 2017, 4:02 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

A point object O is placed between two plane mirror M1 and M2 10mm apart.The distance of object O from M2 is 2mm.Find the distance of the first three images formed by mirror M2.
 

Asked by Balbir 9th August 2017, 6:29 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

1.draw a ray diagram to show the formation of the real imageof a point object due to a convex spherecial refracting surface when a ray of light is travelling from a rarer medium of refractive index u 2 .hence derive the relation between object object distance image distance and radiusof curvature of the spherical surface . 

Asked by mahamood.iphone 5th January 2016, 4:03 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

give an example of mirror whose magnification is -1

Asked by Navya Benny 21st July 2015, 10:38 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

An object is placed 15 cm in front of a convex lens of focal length 10 cm. Find the nature and position of the image formed. Where should a concave mirror of radius of curvature 20 cm be placed so that the final image is formed at the position of the object itself? 

Asked by Topperlearning User 10th July 2015, 8:53 AM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

establish the relation 1/u+1/v=1/f for a concave mirror forming virtual image

Asked by uttam kumar 23rd February 2015, 9:31 AM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

What are virtual and real images exactly?
and would you derive me mirror equation?

Asked by divyashrisureshbabu 11th October 2014, 1:59 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

derivation of mirror equation?? and its uses?

Asked by Tanmai Reddy 11th August 2014, 10:02 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

A convex lens of refractive index 1.5 has a focal length of cm in air.

Calculate the change in its focal length when it is immersed in water of refractive index Syntax error from line 1 column 49 to line 1 column 73. Unexpected '<mstyle '.

Asked by Topperlearning User 7th July 2014, 6:21 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

Show the variation of u straight upsilonin case of a convex mirror?

Asked by Topperlearning User 7th July 2014, 5:58 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

two plane mirrors inclined at 65 degree.a ray of light incident on one mirror at angle alpha,is rendered parallel to the first mirror after two reflections.then alpha is?

Asked by gokul 22nd June 2014, 1:58 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

Deviation of ray of light after undergoing succesive reflection from two PLANE mirrors inclined at certain angle is 288 degree,number of images formed is

Asked by gokul 22nd June 2014, 1:53 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

Use mirror formula to show that for an object lying between the pole and focus of a concave mirror, the image formed is always virtual in nature.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

Prove that for a mirror, the radius of curvature is twice the focal length.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

Illustrate the wavefront associated with reflection of light from a concave mirror.

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

What is the difference between virtual images produced by a concave mirror and a convex mirror?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

How is the reflection of light from a mirror different from total internal reflection of light?

Asked by Topperlearning User 4th June 2014, 1:23 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

A square loop of wire of side 4 cm is placed 20 cm away from a concave mirror of focal length 8 cm. What is the area enclosed by the image of the wire (assume that the centre of the loop is on the axis of the mirror and the two sides are normal to the axis)?

Asked by Topperlearning User 20th May 2014, 1:08 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

An object is kept in front of a concave mirror of focal length 12 cm. Calculate two possible distances of the object from the mirror, for which a magnification of 3 is obtained.

Asked by Topperlearning User 20th May 2014, 1:02 PM
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CBSE - XII Science - Physics - Ray Optics and Optical Instruments

The image formed of an object, placed 20 cm from a concave mirror, is four times the size of the image formed of the same object when placed 45 cm from the mirror. In both cases, the image formed was real. What is the focal length of the mirror?

Asked by Topperlearning User 20th May 2014, 12:53 PM
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