Get a free home demo of LearnNext

Available for CBSE, ICSE and State Board syllabus.
Call our LearnNext Expert on 1800 419 1234 (tollfree)
OR submit details below for a call back

clear
Finding exercises tough? Install LearnNext+ app to watch our videos and get a crystal clear understanding of concepts Install Now X
X
learnnextPlus

Install the app to watch our videos and get a crystal clear understanding of concepts

Install Now
searchtune
What people are asking?
Class-VII
Science
Light

Shruti Senthil Kumar

Nov 27, 2013

What is the difference between convex and concave mirrors and lens ?

This answer has an image. Please click on the question to read more.

Answer (8)
Class-VII
Science
Light

Sumaiya farheen

Dec 3, 2013

write any three uses of concave mirror

Ans:
Following are the some uses of concave mirror
<...

Answer (43)
Class-VII
Science
Light

Sanjeev Sharma

Nov 7, 2014

What is the difference between convex mirror and convex lens and difference between concave lens and concave mirror?

This answer has an image. Please click on the question to read more.

Answer (4)
Class-VII
Science
Light

Arunima

Feb 6, 2014

What are the differences between concave and convex lens

This answer has an image. Please click on the question to read more.

Answer (6)
Class-VII
Science
Light

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...

Answer (2)
Class-VII
Science
Light

Samiha Mazher

Mar 1, 2014

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

Answer.

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

Answer (5)
Class-VII
Science
Light

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...

Answer (2)
Class-VII
Science
Light

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...

Answer (2)
Class-VII
Science
Light

Naina Nisa

Feb 16, 2015

What is lateral inversion ?

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

Answer (2)
Class-VII
Science
Light

Seba

Jan 25, 2014

1.A convex lens is said to have a real focus and a concave lens a virtual. Why?

2.When does a convex lens form a virtual image?Is the virtual image bigger or smaller than an object?

 
1. A convex lens is said to have a real focus and a concave lens a virtual.
 
Answer:  Convex lens bends a parallel beam of light ray...

Answer (1)
Class-VII
Science
Light

Shruti Senthil Kumar

Nov 27, 2013

What is the difference between convex and concave mirrors and lens ?

This answer has an image. Please click on the question to read more.

Answer (8)
Class-VII
Science
Light

Sumaiya farheen

Dec 3, 2013

write any three uses of concave mirror

Ans:
Following are the some uses of concave mirror
<...

Answer (43)
Class-VII
Science
Light

Sanjeev Sharma

Nov 7, 2014

What is the difference between convex mirror and convex lens and difference between concave lens and concave mirror?

This answer has an image. Please click on the question to read more.

Answer (4)
Class-VII
Science
Light

Arunima

Feb 6, 2014

What are the differences between concave and convex lens

This answer has an image. Please click on the question to read more.

Answer (6)
Class-VII
Science
Light

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...

Answer (2)
Class-VII
Science
Light

Samiha Mazher

Mar 1, 2014

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

Answer.

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

Answer (5)
Class-VII
Science
Light

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...

Answer (2)
Class-VII
Science
Light

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...

Answer (2)
Class-VII
Science
Light

Naina Nisa

Feb 16, 2015

What is lateral inversion ?

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

Answer (2)
Class-VII
Science
Light

Seba

Jan 25, 2014

1.A convex lens is said to have a real focus and a concave lens a virtual. Why?

2.When does a convex lens form a virtual image?Is the virtual image bigger or smaller than an object?

 
1. A convex lens is said to have a real focus and a concave lens a virtual.
 
Answer:  Convex lens bends a parallel beam of light ray...

Answer (1)

Filters