|
State the two laws of reflection of light
|
|
2
|
2782
|
June 12, 2019
|
|
Distance (v) with object distance (u) in case of a convex lens
|
|
1
|
2189
|
April 3, 2019
|
|
(a) If the image formed by a mirror for all positions of the object placed in front of it is always diminished
|
|
1
|
3216
|
April 3, 2019
|
|
(a) To construct a ray diagram we use two rays which are so chosen that it is easy to know
|
|
1
|
26173
|
April 3, 2019
|
|
(a) Define the following terms in the context of spherical mirrors: (i) Pole
|
|
1
|
25563
|
April 3, 2019
|
|
(i) What should be the range of distance of an object placed in front of the mirror?
|
|
1
|
2942
|
April 3, 2019
|
|
(a) Define focal length of a spherical lens
|
|
1
|
2583
|
April 3, 2019
|
|
What is meant by the power of a lens?
|
|
1
|
4179
|
April 3, 2019
|
|
One half of a convex lens of focal length 10 cm
|
|
1
|
2142
|
April 3, 2019
|
|
The image of a candle flame placed at a distance of 30 cm from a spherical lens is formed
|
|
1
|
1917
|
April 3, 2019
|
|
“A convex lens can form a magnified erect as well as magnified inverted image of an object placed in' front of it.”
|
|
1
|
2499
|
April 3, 2019
|
|
(a) State the laws of refraction of light. Explain the term absolute refractive index of a medium
|
|
1
|
2792
|
April 3, 2019
|
|
(a) Explain the following terms related to spherical lens: (i) Optical centre
|
|
1
|
9393
|
April 3, 2019
|
|
Explain the following terms related to spherical lenses : 1. Centres of curvature
|
|
1
|
1017
|
April 3, 2019
|
|
1. Which type of mirror should he use and why?
|
|
1
|
2180
|
April 3, 2019
|
|
A student wants to project the image of a candle flame on the walls of school laboratory by using a lens:
|
|
1
|
5827
|
April 3, 2019
|
|
State Snell’s law of refraction of light
|
|
1
|
3518
|
April 3, 2019
|
|
(a) State the laws of refraction of light
|
|
1
|
2220
|
April 3, 2019
|
|
With the help of a ray diagram, state what is meant by refraction of light
|
|
1
|
4890
|
April 3, 2019
|
|
List the new Cartesian sign convention for reflection of light by spherical mirror
|
|
1
|
7682
|
April 3, 2019
|
|
State the law of refraction of light that defines the refractive index of a medium with respect to the other
|
|
1
|
7391
|
April 3, 2019
|
|
List the sign conventions for reflection of light by spherical mirrors
|
|
1
|
11645
|
April 3, 2019
|
|
Draw the ray diagram and also state the position
|
|
1
|
2075
|
April 3, 2019
|
|
(i) “The refractive index of diamond is 2.42”. What is the meaning of this statement?
|
|
1
|
2643
|
April 3, 2019
|
|
(a) One-half of a convex lens is covered with a black paper
|
|
1
|
1257
|
April 3, 2019
|
|
1. If the image formed by a lens is diminished in size and erect for all positions of the object, what type of lens is it?
|
|
1
|
11965
|
April 3, 2019
|
|
A 6 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 25 cm
|
|
1
|
20726
|
April 3, 2019
|
|
The magnification of an image formed by a lens is -1
|
|
1
|
7440
|
April 3, 2019
|
|
If the image formed by a lens for all positions of an object placed in front
|
|
1
|
856
|
April 3, 2019
|
|
A 3 cm tall object is placed 18 cm in front of a concave mirror of focal length 12 cm
|
|
1
|
1860
|
April 3, 2019
|