Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

A student focuses the image of a well illuminated distant object on a screen using a convex lens. After that he gradually moves the object towards the lens and each time focuses its image on the screen by adjusting the lens. 
a)  In which direction - towards the screen or away from the screen, does he move the lens? 
b) What happens to the image on the screen when he moves the object very close to the lens? 
Asked by pdcavita | 19 Dec, 2017, 06:43: AM
answered-by-expert Expert Answer
a) He will move the lens away from the screen.
 
b) When an object is very close to the lens a virtual image is formed by the lens.
Answered by Gajendra | 19 Dec, 2017, 01:02: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 10 - Physics
image 1 cm long of object is formed on a screen by convex lens keeping the object and the screen is the lens is moved until a s image is formed on the screen if the image of 0.75 cm long what is the lenght of the object
Asked by udaypratapyadav0001 | 14 Oct, 2021, 08:57: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Focal Length of lens A is +10cm & lens B is -5cm. Find combined power 
Asked by akshata.shukla1910 | 13 Aug, 2021, 12:43: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
why are telescopes launched in space ? explain in brife about the hubble telescope launched in space
Asked by yashsingh2443 | 01 Aug, 2021, 06:53: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
drop of water bheaves like a
Asked by chandel9807 | 10 Mar, 2021, 11:09: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
what is lens
Asked by shivendralodhi194194 | 26 Jan, 2021, 01:45: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
power of a lens is found to be + 2.5Diopter what kind of lens is it
Asked by rathodveeru41 | 19 Dec, 2020, 10:33: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
power of a lens is found to be + 2.5 Diopter what kind of lens is it
Asked by rathodveeru41 | 18 Dec, 2020, 10:02: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
The radius of curvature of two faces of double convex lens are 10cm,15cm and its focal length is 12cm. Then determine refractive index of lens
Asked by abdibnzubair | 06 Oct, 2020, 12:52: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
why does in case of hypermetropia using a convex lens doesnot affect our far view
Asked by Omkar | 17 Sep, 2020, 06:56: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
 If a spherical lens has a power of, – 0.25 D, the focal length of this lens will be *
Asked by adipadmakarri | 19 Aug, 2020, 09:01: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×