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Shruti Senthil Kumar

Nov 27, 2013



Sanjeev Sharma

Nov 7, 2014



Sumaiya farheen

Dec 3, 2013

#### write any three uses of concave mirror



Ans:
Following are the some uses of concave mirror

<...

Arunima

Feb 6, 2014



Harsh dharmendra

Feb 12, 2015

#### What is Newton's disc?



The '''Newton disc''' also known as Disappearing Colour Disc. It is a disc with segments in different colors usually Newton's primary colours: red, oran...

Samiha Mazher

Mar 1, 2014

#### What do you mean by rectilinear propagation of light? Give examples.



RECTILINEAR PROPAGATION OF LIGHT MEANS LIGHT TRAVELS IN STRAIGHT LINE
.EXAMPLES:WHEN YOU SWITCH ON THE TORCH LIGHT THE TRAVELS IN STRAIGHT LINE

Raghavendra Paripelli

Nov 1, 2014

#### Elaborate the principal focus of convex and concave mirror.



Answer: Principal focus of a convex mirror is a point on the principal axis, where a beam of light, parallel to the principal axis, after reflection, appears to meet (convex). Principal focus is a poi...

Sithara k jabaz

Feb 6, 2014

#### Please answer quickly



Uses of a plane mirror :- 1)In a periscope it is used as a device that enables us to see objects kept at different levels. Periscopes are used in submarines. 2)In a kaleidoscope which is a kind of toy it produc...

Naina Nisa

Feb 16, 2015

#### What is lateral inversion ?



Lateral inversion  is the interchange of left and right between an object and its image.

Bhargavi Shroff

May 2, 2015

#### Is shadow formation a real image? is the image formed on the surface of stagnant water (like wells) also a real image?



Shadow formation is not a real image. Because shadow is formed due to the absence of light where as the image is formed by the light due to reflection or refraction or interference or difraction etc.

Shruti Senthil Kumar

Nov 27, 2013



Sanjeev Sharma

Nov 7, 2014



Sumaiya farheen

Dec 3, 2013

#### write any three uses of concave mirror



Ans:
Following are the some uses of concave mirror

<...

Arunima

Feb 6, 2014



Harsh dharmendra

Feb 12, 2015

#### What is Newton's disc?



The '''Newton disc''' also known as Disappearing Colour Disc. It is a disc with segments in different colors usually Newton's primary colours: red, oran...

Samiha Mazher

Mar 1, 2014

#### What do you mean by rectilinear propagation of light? Give examples.



RECTILINEAR PROPAGATION OF LIGHT MEANS LIGHT TRAVELS IN STRAIGHT LINE
.EXAMPLES:WHEN YOU SWITCH ON THE TORCH LIGHT THE TRAVELS IN STRAIGHT LINE

Raghavendra Paripelli

Nov 1, 2014

#### Elaborate the principal focus of convex and concave mirror.



Answer: Principal focus of a convex mirror is a point on the principal axis, where a beam of light, parallel to the principal axis, after reflection, appears to meet (convex). Principal focus is a poi...

Sithara k jabaz

Feb 6, 2014

#### Please answer quickly



Uses of a plane mirror :- 1)In a periscope it is used as a device that enables us to see objects kept at different levels. Periscopes are used in submarines. 2)In a kaleidoscope which is a kind of toy it produc...

Naina Nisa

Feb 16, 2015

#### What is lateral inversion ?



Lateral inversion  is the interchange of left and right between an object and its image.

Bhargavi Shroff

May 2, 2015

#### Is shadow formation a real image? is the image formed on the surface of stagnant water (like wells) also a real image?



Shadow formation is not a real image. Because shadow is formed due to the absence of light where as the image is formed by the light due to reflection or refraction or interference or difraction etc.

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