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Sam asked a question
Subject: Physics, asked on 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.
Rajay Rajay Chakrasingh asked a question
Subject: Physics, asked on on 13/12/18
What is looming? Explain with a diagram according to ICSE
Sree asked a question
Subject: Physics, asked on 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.
Arpita Lenka asked a question
Subject: Physics, asked on 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°.

            
 
Harshvi Desai asked a question
Subject: Physics, asked on 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.                
Shikha asked a question
Subject: Physics, asked on on 15/3/18
a quartz prism is required for obtaining spectrum of ultra violet rays
Isha Das asked a question
Subject: Physics, asked on on 21/12/17
Why does sun appears red at sunrise and sunset?
Rajdeep Kr. Deka asked a question
Subject: Physics, asked on 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
Pragnya Singh asked a question
Subject: Physics, asked on on 15/3/18
Uses of convexo concave lens
Poonam Sharma asked a question
Subject: Physics, asked on 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. 
Apurvaa Kalamkar asked a question
Subject: Physics, asked on on 2/1/18
Why a crack in a glass vessel often shines like a mirror
Srijani Mitra asked a question
Subject: Physics, asked on 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
Tanvika asked a question
Subject: Physics, asked on on 15/3/18
Solve this please
Sarah Kohli asked a question
Subject: Physics, asked on on 6/4/20
Please explain refraction of light through a prism with formula !!!
Nerd asked a question
Subject: Physics, asked on 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.
Isha Das asked a question
Subject: Physics, asked on on 12/2/18
Draw a labelled diagram to show the path of a monochromatic light ray of light in a prism kept at its angle of minimum deviation.
Mitanka Das asked a question
Subject: Physics, asked on on 7/6/18
show that the sum of kinetic energy and potential energy (i.e.,total mechanical energy) is always conserved in the case of a freely falling body under gravity (with air resistance neglected ) from a height h by finding it when (1) the body is at the top , (2) the body has fallen a distance x , (3) the body has reached the ground.
$h@r¥u ♥️ asked a question
Subject: Physics, asked on on 25/8/20
Harsh kha hai tu please aana please
I miss you yrr... Please come
😍shifa😍👑chauhan 👑 ... asked a question
Subject: Physics, asked on on 26/8/20
Navez ... are you here ....pls
Joel Justin asked a question
Subject: Physics, asked on on 5/2/18
Q.6.a. A ray of light enters a glass slab PQRS, as shown in the diagram. The critical angle of the glass is 42°. Copy this diagram and complete the path of the ray till it emerges out from the glass slab. Mark the angles in the diagram wherever necessary.
Jap asked a question
Subject: Physics, asked on on 13/3/18
Which colour of white light has maximum angle of refraction?
Tiasa Jana asked a question
Subject: Physics, asked on on 23/10/18
If the light emerging from the yellow filter is passed through a red filter,what will be seen on the screen placed at the end?
$h@r¥u ♥️ asked a question
Subject: Physics, asked on on 25/8/20
Kha hai yrr harsh tu.. Please come
I miss you yrr...
Ananya Choudhury asked a question
Subject: Physics, asked on on 16/3/18
Answer part (d)
d) (i) Why is the ratio of the velocities of light of wavelengths 4000 A and 8000 A in vacuum 1:1 ?
     (ii) which of the above wavelengths has a higher frequency ?
Anupam Das asked a question
Subject: Physics, asked on on 30/6/18
Draw a curve showing the variation in the angle of deviation with the angle of incidence at a Prism surface.
Arya Thorat asked a question
Subject: Physics, asked on on 26/6/20
For refraction of light through a prism of glass of refractive index 1.5, if.
angle of incidence (i) = 70 degree
angle of emergence (i2) = 33 degree
angle of deviation = 43 degree,
Find A (angle of prism)
Garima asked a question
Subject: Physics, asked on on 12/11/19
A convex lens of focal length 12 cm produces thrice magnified real image.find the distance between object and image
Mitanka Das asked a question
Subject: Physics, asked on on 4/3/19
Plz solve this sum expert team!!!
As fast as you can!!!!
Kajal Kumari asked a question
Subject: Physics, asked on on 16/3/21
In the following diagram, MM? is a concave mirror and AB is an object. Draw on your answer-sheet a ray diagram to show the formation of image of this object.
Sam asked a question
Subject: Physics, asked on on 27/12/18
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.
Yashvi Agarwal asked a question
Subject: Physics, asked on on 15/3/18
A lens forms the image of an object placed at a distance 25cm from it, at a distance of 60cm in front of it. Find its focal length
Kuki Purbey asked a question
Subject: Physics, asked on on 3/7/18
An illuminated object lies at distance 1m from a screen.a convex lens is used to form the image of object on a screen placed at distance 75c from the lens find the focal length of lens.
Gagan Gupta asked a question
Subject: Physics, asked on on 20/12/17
Why does the light splits in prism but not in glass slab??
Nithin asked a question
Subject: Physics, asked on on 21/12/17
about ray diagrams
Rajay Rajay Chakrasingh asked a question
Subject: Physics, asked on on 10/12/18
What is no work force and give an example for it?
Kushagra Chandra asked a question
Subject: Physics, asked on on 23/12/17
If angle of incidence of red light is 15 degree and that of violet is 80 degree. Whose lateral displacement is greater?
Anupam Das asked a question
Subject: Physics, asked on on 2/7/18
The diagram shows a point source P inside a water container. Three rays A, B and C starting from the source P are shown up to the water surface.(a) Show in the diagram the part of these rays after striking the water surface. The critical angle of the water surface is 48 degree.(b)Name the phenomenon which the rays A, B and C exhibit.
Gagan Gupta asked a question
Subject: Physics, asked on on 18/1/18
Why does a mirage occur? Pls. explain in detail
Aditya asked a question
Subject: Physics, asked on on 18/2/18
Please answer question 7
Q.7. A light ray incident obliquely, passes into three media as shown in figure. The refractive index of medium 3 with respect to medium 1 is


(1) 32
(2) 12
(3) 3
(4) 2
Khushboo asked a question
Subject: Physics, asked on on 1/6/18
PHYSICS BOARD QUESTIONS: Do give correct answer of the 15th question."DO NOT SEND ANSWERS THROUGH LINKS"
Ananya Shivendra asked a question
Subject: Physics, asked on on 29/5/19
How does the value of angle of deviation produced by a prism changes with an increase in the value of angle of incidence.
Surya Ganesh asked a question
Subject: Physics, asked on on 29/3/20
What is meant by vertical shift and lateral shift. Find the difference between vertical shift and lateral shift
Priyanka asked a question
Subject: Physics, asked on on 29/3/18
12 13 14 15:

12. If a person moves towards a plane mirror with speed of 2 m/s, with what speed is he moving towards the the image?

13. An object at a distance 25cm in front of a plane mirror. The mirror is shifted 5cm away from the object. Find :
(i) The new distance between the object and the image 
(ii) The distance between the two positions of the image.

14. A man is standing 5m from a mirror. How far is he from his own image ?
Pranit Kothawade asked a question
Subject: Physics, asked on on 29/1/18
Which is the best school in India?
Subrataa Mahapatra asked a question
Subject: Physics, asked on on 4/7/18
At what position a candle of length 3 cm be placed in front of a convex lens so that its image of length 6M be obtained on a screen placed at a distance of 30 cm behind the lens and what is the focal length of the lens
Priyanka Mazumdar asked a question
Subject: Physics, asked on on 20/2/18
Can someone please mark the angle of deviation for the rectangular block in part 2bi
Q.2. 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.
 
Kuki Purbey asked a question
Subject: Physics, asked on on 19/6/18
A concave lens forms the image of an object kept at a distance 20cm in front of it,at a distance 10 cm on the side of the object.what is the nature of the image and also the focal length of the lens.
Anindita Sarkar asked a question
Subject: Physics, asked on on 8/7/20
"The speed of light remains constant in a transparent homogeneous medium". Justify this statement and also explain the meaning of homogeneous in the statement.
Khushboo asked a question
Subject: Physics, asked on on 1/6/18
 
PHYSICS BOARD QUESTIONS: Do give correct answer of the 4th question."DO NOT SEND ANSWERS THROUGH LINKS"
Q.4. A prism deviates a monochromatic ray of light through an angle δ, when the angle of incidence at the surface of the prism is i.
(i) Draw a graph showing the variation of δ with i. on your graph show the angle of minimum deviation.
(ii) What is the relation between the angle of incidence and the angle of emergence when the ray suffers minimum deviation?
Mitanka Das asked a question
Subject: Physics, asked on on 6/2/19
plzsomeone solve both these questions.
I NEED IT NOW
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