Skip to content

+91 87932 47779

Email Us

Online Support

+91 87932 47779

Email Us At
- vgyanhubpune@gmail.com
- vgyanhubdhule@gmail.com

Menu

Email Us At
- vgyanhubpune@gmail.com
- vgyanhubdhule@gmail.com

Menu

Home
About Us
Courses
Knowledge Base
Events
Testimonials
Contact Us

Home
About Us
Courses
Knowledge Base
Events
Testimonials
Contact Us

Menu

Home
About Us
Courses
Knowledge Base
Events
Testimonials
Contact Us

Try Out Our Free Tests

qUESTIONS

MCQs-PYQs-12th-jee

A thin glass (refractive index 1.5) lens has optical power of -5D in air. It’s optical power in a liquid medium with refractive index 1.6 will be

MCQs-PYQs-12th-jee

The image of an object, formed by a plano-convex lens at a distance of 8 m behind the lens, is real and is one-third the size of the object. The wavelength of light inside the lens is 2/3 times the wavelength in free space. The radius of the curved surface of the lens is

MCQs-PYQs-12th-jee

A rectangular glass slab ABCD of refractive index n1 is immersed in water of refractive index n2 (n1 > n2 ). A ray of light is incident at surface AB of the slab as shown in Fig. What is maximum value of angle of incidence on AB such that the ray emerges out only from the surface CD?

MCQs-PYQs-12th-jee

A point source S is placed at the bottom of a transparent block of height 10 mm and refractive index 2.72. It is immersed in a lower refractive index liquid as shown in the figure. It is found that the light emerging from the block to the liquid forms a circular bright spot of diameter 11.54 mm on the top of the block. The refractive index of the liquid is

MCQs-PYQs-12th-jee

A fish looking up through the water sees the outside world contained in a circular horizon. If the refractive index of water is 4/3 and the fish is 12 cm below the surface, the radius of this circle in cm is

MCQs-PYQs-12th-jee

A light beam is travelling from Region I to Region IV (Refer Figure). The refractive index in Regions I, II, III and IV are n0, n0/6, n0/8 respectively. The angle of incidence 0 for which the beam just misses entering Region IV is

MCQs-PYQs-12th-jee

A transparent solid cylindrical rod has a refractive index of 2/√3 It is surrounded by air. A light ray is incident at the mid- point of one end of the rod as shown in the figure,The incident angle for which the light ray grazes along the wall of the rod

MCQs-PYQs-12th-jee

A light ray travelling in glass medium is incident on glass-air interface at an angle of incidence 0. The reflected (R) and transmitted (7) intensities, both as function of 0, are plotted. The correct sketch is

MCQs-PYQs-12th-jee

White light is incident on the interface of glass and air as shown in the figure. If green light is just totally internally reflected then the emerging ray in air contains

MCQs-PYQs-12th-jee

Consider telecommunication through optical fibres. Which of the following statements is not true

1 2 3 4 5 6 7 8 9 10 11 12 13 14

vgyanlogo

Access To All Courses from VgyanHub

Popular Courses

12th Physics | Maharashtra State Board | Full Course
Physics | JEE Main | Full Course
Physics | NEET | Full Course

Company

Home
About Us
Courses
Testimonials
Knowledge Base

Need Some Help?

Contact Us

© Copyright 2024 VgyanHub & Designed by PanGrow Tech Pvt. Ltd.