The graph between angle of deviation $(δ)$ and angle of incidence $(i)$ for a triangular prism is represented by

A beam of unpolarised light of intensity

I_{0}

is passed through a polaroid

A

and then through another polaroid

B

which is oriented so that its principal plane makes an angle of

4 5^{\circ}

relative to that of

A

. The intensity of the emergent light is
(a)

I_{0}

\frac{I _{0}}{2}

\frac{I _{0}}{4}

\frac{I _{0}}{8}

Topic:

Wave Optics

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2013

View 4 solutions

A circular loop of radius

0.3 cm

lies parallel to a much bigger circular loop of radius

20 cm

. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is

15 cm

. If a current of

2.0 A

flows through the smaller loop, then the flux linked with bigger loop is
(a)

9.2 \times 1 0^{- 11} Wb

6 \times 1 0^{- 11} Wb

3.3 \times 1 0^{- 11} Wb

6.6 \times 1 0^{- 9} Wb

Topic:

Moving Charges and Magnetism

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2013

View 8 solutions

Hydrogen atom is excited from ground state to another state with principal quantum number equal to 4 . Then, the number of spectral lines in the emission spectra will be
(a) 2
(b) 3
(c) 5
(d) 6

Topic:

Atoms

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2013

View 2 solutions

In a hydrogen like atom electron make transition from an energy level with quantum number

n

to another with quantum number

(n - 1)

. If

n ≫ 1

, the frequency of radiation emitted is proportional to
(a)

\frac{1}{n}

\frac{1}{n ^{2}}

\frac{1}{n ^{3} /2}

\frac{1}{n ^{3}}

Topic:

Atoms

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2013

View 5 solutions

Practice questions from Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Topic:

Ray Optics and Optical Instruments

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

View solution

What is the position and nature of image formed by lens combination shown in figure? (where,

f_{1}

and

f_{2}

are focal lengths)

$— \frac{20}{3}$ cm from point $B$ at right, real 3
70 cm from point B at right, real
90 cm from point B at right, real
70 cm from point Bat left, virtual

Topic:

Ray Optics and Optical Instruments

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2019

View 5 solutions

Which of the following transitions in hydrogen atoms emit photons of highest frequency?
(a)

n = 2

n = 6

n = 6

n = 2

n = 2

n = 1

n = 1

n = 2

Topic:

Ray Optics and Optical Instruments

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2007

View 11 solutions

An astronomical telescope has a large aperture to

reduce spherical aberration
have high resolution
increase span of observation
have low dispersion

Topic:

Ray Optics and Optical Instruments

Book:

Arihant Physics JEE Main Chapterwise Solutions (2019-2002) (Arihant)

Exam:

JEE Mains 2002

View 3 solutions

Practice questions from Ray Optics and Optical Instruments in the same exam

Car B overtakes another car A at relative speed of

40 ms^{- 1}

. How fast will the image of car B appear to move in the mirror of focal length 10 cm fitted in car A, when the car B is 1.9 m away from car A ?

$0.2 ms^{- 1}$
$40 ms^{- 1}$
$0.1 ms^{- 1}$
$4 ms^{- 1}$

Topic:

Ray Optics and Optical Instruments

Exam:

JEE Mains 2021 Aug 26 Shift 1

View 4 solutions

A ray of light passing through a prism

(μ = 3)

suffers minimum deviation. It is found that the angle of incidence is double the angle of refraction within the prism. Then, the angle of prism is _____ (in degree).

Topic:

Ray Optics and Optical Instruments

Exam:

JEE Mains 2021 July 22 Shift 2

View 2 solutions

Practice more questions from Ray Optics and Optical Instruments

A point object is placed at a distance of

12 cm

from a convex lens of focal length

10 cm

. On the other side of the lens, a convex mirror is placed at a distance of

10 cm

from the lens such that the image formed by the combination coincides with the object itself. The focal length of the convex mirror is

20 cm
25 cm
15 cm
30 cm

Topic:

Ray Optics and Optical Instruments

Book:

Optics And Modern Physics (DC Pandey)

View 8 solutions

A glass cube has side length

a

and its refractive index is

μ = \frac{3}{2}

. A ray of light

(A B)

is incident normally on one of its face and after passing through the cube it forms a spot

S

on screen

Σ

. The cube begins to rotate with angular speed

ω

about its central axis as shown in the Figure. Immediately after the cube begins to rotate, find the speed of the spot

S

on the screen.

Topic:

Ray Optics and Optical Instruments

Book:

Problems in Physics II for IIT JEE (McGraw Hill)

View solution

A square wire of side 3.0 cm is placed 25 cm in front of a concave mirror of focal length 10 cm, with its centre on the axis of the mirror and its plane normal to the axis. The area enclosed by the image of the square wire is:

7.5 $c m^{2}$
6.0 $c m^{2}$
4.0 $c m^{2}$
3.0 $c m^{2}$

Topic:

Ray Optics and Optical Instruments

View 5 solutions

A fish is rising up vertically inside a pond with velocity

4 cm / s

, and notices a bird, which is diving downward and its velocity appears to be

16 cm / s

(to the fish). What is the real velocity of the diving bird, if refractive index of water is

4/3

Topic:

Ray Optics and Optical Instruments

Book:

Optics And Modern Physics (DC Pandey)

View 3 solutions

Practice questions on similar concepts asked by Filo students

Two soap bubbles combine under isothermal conditions to form a single soap bubble. If in this process, the change in volume is

V

and change in area is

S

, then (

P

is atmospheric pressure)

$P V + TS = 0$
$4 PV + 3 TS = 0$
$3 P V + 4 TS = 0$
$3 PV + TS = 0$

Topic:

Thermodynamics

View solution

bivalent positive ions per second move towards right side and

(ii) In an electrolyte

3.2 \times 1 0^{18}

3.6 \times 1 0^{18}

monovalent negative ions per second move towards left side, then calculate the current flowing in it.

Topic:

Electrostats

View solution

Texts: Already solve for the velocity and the time in both cases. Can you explain and do the 3rd part? 3. Sketch a diagram and clearly label x- and y-axes, and the (x,y) coordinates of initial position and final position. Show calculations below. Discuss sources of experimental error. Attach additional pages if necessary. Not part 3 but this question below: * Sketch a diagram and clearly label x- and y-axes, and the (x,y) coordinates of initial position and final position. Show calculations below. Discuss sources of experimental error. Attach additional pages if necessary. Projectile Motion Lab The purpose of this lab is to determine the launch velocity of a projectile. Data: V = 431 m/s Vz = 0.41 s Vertical Displacement (m) = 18 m Horizontal Displacement (m) = 198 m Vertical Initial Torque = 39 m 0g13 = 1.4 m Average = 1.5 m 79198 m = 23/1.25 m V2 = 5.4 m/s V = 0.551 m/s Average y = 0.83 m Average x = 1.98 m Average Vox = 81 m/s

Topic:

Physics

View solution