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

The

I - V

characteristic of an LED is

Topic:

Semiconductor Electronics: Materials, Devices and Simple Circuits

Book:

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

Exam:

JEE Mains 2013

View solution

This question has Statement I and Statement II. Of the four choices given after the statements, choose the one that best describes the two statements.
Statement I: Higher the range, greater is the resistance of ammeter.
Statement II: To increase the range of ammeter, additional shunt needs to be used across it.
(a) Statement I is true, Statement II is true; Statement II is the correct explanation of Statement I
(b) Statement I is true, Statement II is true; Statement II is not the correct explanation of Statement I
(c) Statement I is true, Statement II is false
(d) Statement I is false, Statement II is true

Topic:

Current Electricity

Book:

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

Exam:

JEE Mains 2013

View solution

circuit as shown below, both switches are open initially. Now, switch

In an

L - C - R

S_{1}

is closed and

S_{2}

kept open

(q)

is charge on the capacitor and

τ = RC

is capacitance time constant). Which of the following statement is correct?

Work done by the battery is half of the energy dissipated in the resistor
At $t = τ, q = C V /2$
At $t = 2 τ, q = C V (1 - e^{- 2})$
At $t = \frac{τ}{a}, q = C V (1 - e^{- 1})$

Topic:

Alternating Current

Book:

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

Exam:

JEE Mains 2013

View solution

A diode detector is used to detect an amplitude modulated wave of

60%

modulation by using a condenser of capacity

250 pF

in parallel with a load resistance

100 k Ω

. Find the maximum modulated frequency which could be detected by it. (a)

10.62 MHz

(b)

10.62 kHz

(c)

5.31 MHz

(d)

5.31 kHz

Topic:

Semiconductor Electronics: Materials, Devices and Simple Circuits

Book:

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

Exam:

JEE Mains 2013

View solution

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

The angular width of the central maximum in a single slit diffraction pattern is

6 0^{\circ}

. The width of the slit is

1 μ m

. The slit is illuminated by monochromatic plane waves. If another slit of same width is made near it, Young's fringes can be observed on a screen placed at a distance

50 cm

from the slits. If the observed fringe width is

1 cm

, what is slit separation distance? (i.e. distance between the centres of each slit.)
(a)

25 μ m

(b)

50 μ m

(c)

75 μ m

(d)

100 μ m

Topic:

Ray Optics and Optical Instruments

Book:

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

Exam:

JEE Mains 2018

View 5 solutions

A student measures the focal length of a convex lens by putting an object pin at a distance

u

from the lens and measuring the distance

v

of the image pin. The graph between

u

and

v

plotted by the student should look like

Topic:

Ray Optics and Optical Instruments

Book:

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

Exam:

JEE Mains 2008

View 2 solutions

The variation of refractive index of a crown glass thin prism with wavelength of the incident light is shown. Which of the following graphs is the correct one, if

D_{m}

is the angle of minimum deviation?

Topic:

Ray Optics and Optical Instruments

Book:

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

Exam:

JEE Mains 2019

View 3 solutions

A person looking through telescope

T

just sees the point

A

on the rim at the bottom of a cylindrical vessel when the vessel is empty. When the vessel is completely filled with a liquid

(μ = 1.5)

, he observes a mark

B

at the centre of the bottom without moving the telescope or the vessel. The diameter of the base of the vessel is

10 cm

. The height of the vessel is
(a)

10 cm

(b)

15 cm

(c)

4.85 cm

(d)

8.45 cm

Topic:

Ray Optics and Optical Instruments

Book:

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

Exam:

JEE Mains 2008

View 3 solutions

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

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

A ray of light entering from air into a denser medium of refractive index

\frac{4}{3}

, as shown in figure. The light ray suffers total internal reflection at the adjacent surface as shown. The maximum value of angle

θ

should be equal to:

$sin^{- 1} \frac{5}{4}$
$sin^{- 1} \frac{7}{4}$
$sin^{- 1} \frac{7}{3}$
$sin^{- 1} \frac{5}{3}$

Topic:

Ray Optics and Optical Instruments

Exam:

JEE Mains 2021 July 25 Shift 2

View 10 solutions

Your friend is having eye sight problem. She is not able to see clearly a distant uniform window mesh and it appears to her as non-uniform and distorted. The doctor diagnosed the problem as :

Myopia and hypermetropia
Myopia and Astigmatism
Presbyopia with Astigmatism
Astigmatism

Topic:

Ray Optics and Optical Instruments

Exam:

JEE Mains 2021 Mar 18 Shift 1

View 2 solutions

Red light falls normally on a diffraction grating ruled 4000 lines/

cm

and the second order image is diffracted

34. 0^{\circ}

from the normal. Compute the wavelength of the light.

$229 nm$
$137 nm$
$699 nm$
$250 nm$

Topic:

Ray Optics and Optical Instruments

Book:

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

Exam:

JEE Mains 2007

View solution

Practice more questions from Ray Optics and Optical Instruments

Light of different colours propagates through air

With the velocity of air
With different velocities
With the velocity of sound
Having the equal velocities

Topic:

Ray Optics and Optical Instruments

Book:

Fundamentals of Physics, Extended

View 2 solutions

A ray of light passes from vacuum into a medium of refractive index

μ

, the angle of incidence is found to be twice the angle of refraction. Then the angle of incidence is

$2 cos^{- 1} (\frac{μ}{2})$
$sin^{- 1} (μ)$
$sin^{- 1} (\frac{μ}{2})$
$cos^{- 1} (\frac{μ}{2})$

Topic:

Ray Optics and Optical Instruments

View 5 solutions

A plane mirror is moving with velocity

4 \hat{i} + 4 \hat{j} + 8 \hat{k}

. A point object in front of the mirror moves with a velocity

3 \hat{i} + 4 \hat{j} + 5 \hat{k}

. Here,

\hat{k}

is along the normal to the plane mirror and facing towards the object. The velocity of the image is

$- 3 \hat{i} - 4 \hat{j} + 5 \hat{k}$
$3 \hat{i} + 4 \hat{j} + 11 \hat{k}$
$- 4 \hat{i} + 5 \hat{j} + 11 \hat{k}$
$7 \hat{i} + 9 \hat{j} + 3 \hat{k}$

Topic:

Ray Optics and Optical Instruments

Book:

Optics And Modern Physics (DC Pandey)

View 7 solutions

Microscope is an optical instrument which

Enlarges the object
Increases the visual angle formed by the object at the eye
Decreases the visual angle formed by the object at the eye
Brings the object nearer

Topic:

Ray Optics and Optical Instruments

Book:

Fundamentals of Physics, Extended

View 2 solutions

Practice questions on similar concepts asked by Filo students

through it (in S.I unit) 2 MAILL US AT HOPESALIVE406@GMAIL.COM. FULL SCREEN ISSUE - VISIT I

Q5)

E = 4 \overset{}{^} + 3 \overset{}{^} - 2 \hat{k} N / C

square of side

22 m

. Find

ϕ_{E}

Topic:

Electrostats

View solution

The figure shows the force (F) versus displacement (s) graph for a particle of mass

m = 2 kg

initially at rest (i) The maximum speed of the particle occurs at

x = \dots .. m

(ii) The maximum speed of the particle is .....

ms^{- 1}

(iii) The particle once again has its speed zero at

x = \dots\dots m

$5, 3, 6$
$3, 4.18, 6$
$6, 5, 3$
$4, 5, 6$

Topic:

Mechanics

View solution

In a house there are four bulbs each of

50 W

and 5 fans each of 60W. If they are used at the rate of 6 hours a day, the electrical energy consumed in a month of 30 days isa. 64 KWH b. 90.8KWH c. 72KWH d. 42KWH

Topic:

Magnetism, EMI and AC

View solution