Question

V. (a) What is 'blind spot' in the eye?
(b) What is night blindness? What causes night blindness?
5. What is lateral inversion ? Explain with the help of an example.
Long Answer Type Questions
76. (a) What is meant by a luminous object ? Name two luminous objects. 24
(b) What is meant by a non-luminous object ? Name two non-luminous objects.293
77. (a) What is the difference between regular reflection and diffuse reflection of light ? Name one
which can produce regular reflection of light and another which produces diffuse reflection of
(b) Draw diagrams to show regular reflection of light and diffuse reflection of light.
(c) Which of the following will cause regular reflection of light and which diffuse reflection of lig
(a) Polished wooden table (b) Chalk powder
(c) Cardboard
(d) Mirror
(e) Paper
() Marble floor with water spread over it.
78. (a) Draw a diagram to show the reflection of light from a plane mirror. Label the following on the di
(a) Plane mirror
(b) Incident ray
(c) Reflected ray
(d) Point of incidence (e) Normal
(1) Angle of incidence
(8) Angle of reflection
(b) State the laws of reflection of light.
79. (a) Draw a labelled diagram showing how a plane mirror forms an image of a point object placed
of it.
(b) State the characteristics of the image formed in a plane mirror.
$. (a) Draw a labelled diagram of the human eye. Label the following parts on this diagram : SOY
Cornea, Iris, Pupil, Ciliary muscles, Eye-lens, Retina, Optic nerve, Blind spot.
(6) What are the functions of the following parts of the eye ?
(a) Iris Eye-lens Ciliary muscles ) Retina () Optic nerve
e 304 Pg ho
Ioan Cuestion​

Answer 1

Answer:

bhai ek ek kr ke ask kro

Explanation:

the place where no image formed

Answer 2

Answer:

ask one by one question