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Sam
Subject: Physics
, asked on 27/12/18
Solve pls ....The figure shows a silvered lens. uA = 1.6 and uB = 1.2, R1 = 80 cm, R2 = 40 cm and R3 = 20 cm. An object is placed at a distance of 12 cm from this lens. Find the image position.
Answer
9
Rajay Rajay Chakrasingh
Subject: Physics
, asked on 13/12/18
What is looming? Explain with a diagram according to ICSE
Answer
1
Sree
Subject: Physics
, asked on 11/2/18
(a)
(i) Copy and complete the ray diagram to show the formation of the image of the object AB
(ii) Name the lens LL'.
(iii) Name a device in which this principle is used.
Answer
2
Arpita Lenka
Subject: Physics
, asked on 28/12/17
Answer (b)
Q(b). For the incident ray LM shown, complete the diagram to show the path of the ray into and out of the prism. The critical angle of glass is 42°.
Answer
11
Harshvi Desai
Subject: Physics
, asked on 23/12/17
(c) A ray of monochromatic light enters a liquid from air as shown in the diagram given alongside.
(i) Copy the diagram and show in the diagram the path of the ray of light after it strikes the mirror and re-enters the medium of air.
(ii) Mark in your diagram the two angles on the surface of separation when the ray of light moves out from the liquid to air.
Answer
1
Shikha
Subject: Physics
, asked on 15/3/18
a quartz prism is required for obtaining spectrum of ultra violet rays
Answer
7
Isha Das
Subject: Physics
, asked on 21/12/17
Why does sun appears red at sunrise and sunset?
Answer
2
Rajdeep Kr. Deka
Subject: Physics
, asked on 17/1/19
The size of the real image formed by a convex lens is same with the object. The focal length of the lens is -(a) u/2 (b) 2u (c) 2v (d) v
Answer
4
Pragnya Singh
Subject: Physics
, asked on 15/3/18
Uses of convexo concave lens
Answer
9
Poonam Sharma
Subject: Physics
, asked on 7/1/18
Q. The diagrams (a) and (b) in Fig. 4.34 below show the refraction of a ray of light of single colour through a prism and a parallel sided glass slab respectively.
(i) In each diagram, label the incident, refracted, emergent rays and the angle of deviation.
(ii) In what way the direction of emergent ray in the two cases differ with respect to the incident ray? Explain your answer.
Answer
4
Apurvaa Kalamkar
Subject: Physics
, asked on 2/1/18
Why a crack in a glass vessel often shines like a mirror
Answer
2
Srijani Mitra
Subject: Physics
, asked on 26/2/18
An object is viewed through a glass prism with its vertex pointing upwards . Draw a ray diagram to show the formation of its image seen by the observer
Answer
1
Tanvika
Subject: Physics
, asked on 15/3/18
Solve this please
Answer
1
Sarah Kohli
Subject: Physics
, asked on 6/4/20
Please explain refraction of light through a prism with formula !!!
Answer
2
Nerd
Subject: Physics
, asked on 26/3/19
Some pieces of glass are seen immersed in a liquid. On heating the liquid at a certain temperature they are not seen. Explain.
Answer
1
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What are you looking for?
(i) Copy and complete the ray diagram to show the formation of the image of the object AB
(ii) Name the lens LL'.
(iii) Name a device in which this principle is used.
Q(b). For the incident ray LM shown, complete the diagram to show the path of the ray into and out of the prism. The critical angle of glass is 42°.
(i) Copy the diagram and show in the diagram the path of the ray of light after it strikes the mirror and re-enters the medium of air.
(ii) Mark in your diagram the two angles on the surface of separation when the ray of light moves out from the liquid to air.
(i) In each diagram, label the incident, refracted, emergent rays and the angle of deviation.
(ii) In what way the direction of emergent ray in the two cases differ with respect to the incident ray? Explain your answer.