Home
Class 12
PHYSICS
An image of a bright square is obtained ...

An image of a bright square is obtained on a screen with the aid of a convergent lens. The distance between the square and the lens is 40cm. The area of the image is nine times larger than that of the square. Select the correct statement(s):

A

image is formed at a distance of 120 cm from lens

B

image is formed at a distance of 360 form thelens

C

focal length of the lens is 30 cm

D

focal length of the lens is 36 cm

Text Solution

Verified by Experts

The correct Answer is:
A, C
Promotional Banner

Topper's Solved these Questions

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise PRACTICE SHEET (ADVANCED) (LINKED COMPREHENSION CORRECT TYPE QUESTIOS)|7 Videos

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise PRACTICE SHEET (ADVANCED) (MATRIX MATCHING TYPE QUESTIOS)|1 Videos

  • GEOMETRICAL OPTICS

    AAKASH SERIES|Exercise PRACTICE SHEET (ADVANCED) (STRAIGHT OBJECTIVE TYPE QUESTIOS)|30 Videos

  • ELEMENTS OF VECTORS

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|10 Videos

  • LAWS OF MOTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE|106 Videos

Similar Questions

Explore conceptually related problems

The distance between the object and its real image from the convex lens is 60 cm and the height of image is two times the height of object . The focal length of the lens is

The distance between an electric lamp and a screen is d=1m . A convergent lens of focal length f=21 cm is placed between the lamp and the lens such that a sharp image of the lamp filament is formed on the screen.

A cocave lens forms the image of an object such that the distance between the object and image is 10 cm and the magnification produced is 1/4. the focal length of the lens will be

A concave lens forms the image of an object such that the distance between the object and image is 10cm and the magnification produced is 1/4. The focal length of the lens will be

The image of a candle flame formed by a lens is obtained on a screen placed on the other side of the lens. If the image is three times the size of the flame and the distance between lens and image is 80 cm, at what distance should the candle be placed from the lens ? What is the nature of the image at a distance of 80 cm from the lens ?

In displacement method, the distance between object and screen is 96cm. The ratio of lengths of two images formed by a converging lens placed between them is 4. Then,

In a displacement method the distance between the object and the screen is 70 cm and the focal length of the lens is 16 cm, find the separations of the magnified and diminished image position of the lens.

In a slide show programme, the image on the screen has an area 900times that of the slide. If the distance between the slide and the screen is x times the distance between the slide and the projector lens, then

Find the distance of an object from a convex lens if image is two times magnified. Focal length of the lens is 10cm