CBSE X Physics
Why does the light passes undeviated through optical centre?
Asked by jgprmr
17th June 2017
5:13 PM
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CBSE X Physics
An image formed on a screen is three times of the object .The object and screen are 80 cm apart when the image is sharply focused.Calculate the focal length of the lens.
Asked by Rajendra Beniwal
11th January 2018
4:20 PM
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ICSE X Physics Refraction Through a Lens
Q. 2
Asked by Rayeesa
25th April 2018
9:54 PM
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CBSE X Physics
A magnifying lens of focal length of 20 cm is held 10 cm away from the object 0.25 cm l9ng. Find the position, nature of the image, power and magnification of the lens.
Asked by lakhinandanbora21590
11th July 2018
11:35 PM
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ICSE X Physics Refraction Through a Lens
The image formed by a convex mirror is of size one-third the size of the object.How are 'u' and 'v' related? PLEASE ANSWER FAST. IT IS VERY URGENT.
Asked by kandappan
18th August 2018
10:50 PM
Answer Verified by Expert
ICSE X Physics
Q1:Where should an object be placed in front of a convex lens of focal length 0.12 m to obtain a real image of size three times the size of the of the object,on the screen? Q2:A convex lens forms an inverted image of size same as that of the object which is placed at a distance 60 cm in front of the lens.Find:a.The position of the image and b.The focal length of the lens. Q3:A concave lens forms an erect image of 1/3rd size of the object which is placed at a distance 30 cm in front of the lens.Find:a.The position of the image and b.The focal length of the lens.
Asked by kaursukhjindersukh
3rd September 2018
10:38 PM
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CBSE X Physics Light - Reflection and Refraction
The object distance of a lens is 30 cm and the image distance is 10 cm find the magnificence of the lens with the help of this decide whether the size of the image is small or big than the size of the object ?
Asked by Bilalzaid80428042
3rd January 2019
10:09 AM
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CBSE X Physics Light - Reflection and Refraction
An object placed on ameter scale at 8 cm mark was focused on a white screen placed at 92 cm mark,using a converginglens placed on the meter scale at 50 cm mark. a) find the focal length of the converging lens b) find the position of the image formed if the object is shifted towards the lens at a position of 29 cm c) state the nature of image formed if the object is further shifte towards the lens.
Asked by rs1702
7th January 2019
12:09 PM
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JEE Main Physics
Please explain with ray diagram
Asked by himanshuneb
25th January 2019
11:11 AM
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CBSE X Science
a concave lens has a focal length of 30 cm at what distance should an object be placed from the lens so that it forms an image at 20 cm from the lens find the magnification produced by the lens
Asked by Vks.rathore77
14th February 2019
6:55 PM
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CBSE VII Science Light
Give one situation of real image
Asked by Anjalijaiswal13997
14th February 2019
9:56 PM
Answer Verified by Expert
CBSE XII Science Physics
Lens combinations
Asked by alanpeter9611
24th February 2019
12:52 AM
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ICSE X Physics Refraction Through a Lens
Q. An object is placed at a distance of 24 cm in front of a convex lens of focal length 8 cm. (i) What is the nature of the image formed? (ii) Calculate the distance of the image from the lens. (iii) Calculate the magnification of the image.
Asked by akshushashu123
6th March 2019
10:00 AM
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JEE Main Physics
solve the three paragraph questions
Asked by sarveshvibrantacademy
29th April 2019
11:14 AM
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CBSE VIII Science Light
What happens when object is placed between f and o
Asked by madhubalaji601
21st September 2019
12:52 PM
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CBSE X Physics Light - Reflection and Refraction
Why magnification is negative in case of real image
Asked by sujaltomar30
27th November 2019
6:58 AM
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CBSE X Physics Light - Reflection and Refraction
How will the image of an object appear if half of the mirror/lens is covered completely? Please answer with diagram!
Asked by drhimasingh
30th November 2019
12:43 PM
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CBSE X Physics Light - Reflection and Refraction
A a concave lens has focal length of 15cm at what distance should be the object placed from the lens so that it is formed and image at 10 cm from the lens? What will be the nature and magnification of the image
Asked by malkabaswarai
27th March 2020
12:07 PM
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CBSE X Physics Light - Reflection and Refraction
Sir , we have 4 rules to draw image . Can we use any two rule to draw image .
Asked by tanushrimanish7234.bmps
22nd April 2020
2:57 PM
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CBSE X Physics Light - Reflection and Refraction
In physics,what kind of image will be form when concave and convex mirror and in lens are kept together
Asked by kmbhuvanakmbhuvana
19th July 2020
2:28 PM
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CBSE X Physics Light - Reflection and Refraction
Draw the ray diagram when the object is kept between F1 and 2F1 of the convex lens. with the help of the diagram mention the position and nature of the image formed.
Asked by ashokrathodrathod7
12th August 2020
12:15 PM
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NEET NEET Physics Optics
⭕ an object starts moving at an angle of 30° with the principal axis in the front of a biconvex lens of focal length +10cm if ∅ denotes angle at which images starts to move with principal axis then value of ∅ is ?? (Given u =-20cm)
Asked by jhajuhi19
27th September 2020
9:40 AM
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CBSE X Physics Light - Reflection and Refraction
when we reverse the image then image will formed or not
Asked by vkpriya1228
24th April 2021
8:04 PM
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CBSE X Physics Light - Reflection and Refraction
State three characteristics of the image formed by a convex lens when the object is close to it.
Asked by asifmd2k9
6th February 2022
8:50 PM
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CBSE X Physics Light - Reflection and Refraction
Please answer this
Asked by kuppusamybose46
6th March 2022
5:16 PM
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CBSE X Physics Light - Reflection and Refraction
A lens of focal length 12cm forms an erect image three times the size of the object. What is the distance between the object and image?
Asked by bhu.joshi54
14th June 2022
9:21 PM
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CBSE X Physics Light - Reflection and Refraction
If rays are coming from a different object to adouble convex lens with two different refractive indices Mu1 and Mu 2 above and below the principal axis, explain how many images will be seen?
Asked by subrasixty
13th January 2024
5:05 PM
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