NCERT Solutions
Board Paper Solutions
Ask & Answer
School Talk
Login
GET APP
Login
Create Account
Popular
Latest
Expert Answers
ALL
Amrita Sinha
Subject: Science
, asked on 2/5/18
The light falls on reflecting surface at an angle of 45degree
1.that is angle made by reflected ray and incident ray?
2.what is angle of incidence and angle of reflection
3.what is angle between reflecting surface and reflected ray?
Answer
1
Vritti Gianchandani
Subject: Science
, asked on 14/4/18
What is kupier belt?
Answer
3
Vritti Gianchandani
Subject: Science
, asked on 14/4/18
Which the hottest and coldest planet in our solar system?
Answer
3
Ayush Anand
Subject: Science
, asked on 30/3/18
The angle of incident of a light rays incidents on the surface of a plane mirror is 30 degree. The angle of deviation is?
Answer
1
Ayush Anand
Subject: Science
, asked on 30/3/18
Q.62. Which property of light is involved in the formation of shadow? Explain in which case you will not get penumbra at all.
Answer
1
Ayush Anand
Subject: Science
, asked on 30/3/18
S.I. unit of luminous intensity?
Answer
1
Ayush Anand
Subject: Science
, asked on 30/3/18
Solve this:
Q.22. Read the following statements and choose the correct option.
(A) Only a point source forms a complete umbra.
(B) An extended source of light forms both umbra and penumbra.
(a) Only A is true
(b) Only B is true
(c) Both A and B are true
(d) Both A and B are false
Answer
1
Neha
Subject: Science
, asked on 12/3/18
The 1st two questions:
1. Hitesh went to an exhibition and saw a stall marked laughing room. When he entered, he found that the shall had number of mirrors on all four sides. As people entered and saw their own images, they had fits on laughter because their images looked amusingly distorted. Why did the mirrors produce such distorted images?
2. While making a kaleidoscope if you want to increase the number and intricacies of designed formed. What would you do ?
Answer
1
Neha
Subject: Science
, asked on 12/3/18
Solve this:
Q. The nature of an image depends on the position of the object with respect to a lens. Explain the formation of images from a convex lens with diagrams to support the statement.
Answer
2
Kshitij Gomber
Subject: Science
, asked on 10/3/18
Q.19. Suppose a candle is placed between two parallel mirrors facing each other. If the distance between the two mirrors is 20 cm then at which of the following distances will you get no image in any mirror?
a. 10 cm
b. 20 cm
c. 30 cm
d. 50 cm
Answer
2
Sandipan
Subject: Science
, asked on 9/3/18
Q.3 On ........ the angle between the two reflecting surfaces , the number of images .........
Answer
3
Santanu Sahoo
Subject: Science
, asked on 9/3/18
Question:-
What is the form of light?
a) A ray which bounces off different surfaces.
b) A wave like seen in diffraction.
c) A stream of particles like photons in photoelectric effect.
d) Both wave and particle structure .
e) None of these.
f) Can't say.
SO
, please tell and define what light actually is?
{In this question, Please don't give any web link or certified answer ... I want only experts answer}
Answer
2
Ishika Vasudeva
Subject: Science
, asked on 5/3/18
Q.
What is the colour of the spot?
Answer
1
Aakriti Ghosh
Subject: Science
, asked on 5/3/18
How many image per second need to be projected on the screen in order to see a moving picture
Answer
1
Abhishek Binu
Subject: Science
, asked on 1/3/18
Surface that doesnt reflect light
Answer
4
1
2
3
4
5
Next
What are you looking for?
1.that is angle made by reflected ray and incident ray?
2.what is angle of incidence and angle of reflection
3.what is angle between reflecting surface and reflected ray?
Q.22. Read the following statements and choose the correct option.
(A) Only a point source forms a complete umbra.
(B) An extended source of light forms both umbra and penumbra.
(a) Only A is true
(b) Only B is true
(c) Both A and B are true
(d) Both A and B are false
1. Hitesh went to an exhibition and saw a stall marked laughing room. When he entered, he found that the shall had number of mirrors on all four sides. As people entered and saw their own images, they had fits on laughter because their images looked amusingly distorted. Why did the mirrors produce such distorted images?
2. While making a kaleidoscope if you want to increase the number and intricacies of designed formed. What would you do ?
Q. The nature of an image depends on the position of the object with respect to a lens. Explain the formation of images from a convex lens with diagrams to support the statement.
a. 10 cm
b. 20 cm
c. 30 cm
d. 50 cm
What is the form of light?
a) A ray which bounces off different surfaces.
b) A wave like seen in diffraction.
c) A stream of particles like photons in photoelectric effect.
d) Both wave and particle structure .
e) None of these.
f) Can't say.
SO, please tell and define what light actually is?
{In this question, Please don't give any web link or certified answer ... I want only experts answer}
Q. What is the colour of the spot?