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Whether the diffraction effects from a slit will be more clear
Concepts of Physics by H. C. Verma
Concepts of Physics

Class 11

HC Verma Part I

Author:
H. C. Verma
Subject:
Physics
1

Chapter 1: Introduction to Physics

35 questions

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2

Chapter 2: Physics and Mathematics

60 questions

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3

Chapter 3: Rest and Motion: Kinematics

88 questions

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4

Chapter 4: The Forces

33 questions

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5

Chapter 5: Newton's Law of Motion

82 questions

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6

Chapter 6: Friction

57 questions

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7

Chapter 7: Circular Motion

63 questions

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8

Chapter 8: Work and Energy

101 questions

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9

Chapter 9: Centre of Mass, Linear momentum Collision

119 questions

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10

Chapter 10: Rotational Mechanics

149 questions

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11

Chapter 11: Gravitation

80 questions

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12

Chapter 12: Simple Harmonic Motion

111 questions

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13

Chapter 13: Fluid Mechanics

81 questions

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14

Chapter 14: Some Mechanical Properties of Matter

87 questions

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15

Chapter 15: Wave Motion and Waves on a String

96 questions

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16

Chapter 16: Sound Waves

118 questions

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17

Chapter 17: Light Waves

79 questions

Q1
The wavelength of light in a medium is where is the wavelength in vacuum. A beam of red light enters water. The wavelength in water is To a person under water, does this light appear green?
Q2
Whether the diffraction effects from a slit will be more clearly visible or less clearly if the slit-width is increased?
Q3
If we put a cardboard (say 20 cm × 20 cm) between a light source and our eyes, we can't see the light. But when we put the same cardboard between a sound source and our ear, we hear the sound almost clearly. Explain.
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18

Chapter 18: Geometrical optics

123 questions

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19

Chapter 19: Optical Instruments

52 questions

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20

Chapter 20: Dispersion and Spectra

27 questions

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21

Chapter 21: Speed of Light

14 questions

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22

Chapter 22: Photometry

38 questions

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Question
Easy
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Solving time: 2 mins

Whether the diffraction effects from a slit will be more clearly visible or less clearly if the slit-width is increased?

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Book

Book:

Concepts of Physics (HC Verma Part I)

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Text SolutionText solutionverified iconVerified

The width of the central band is inversely proportional to the slit width. So, as the width of the slit is increased, the central band will become less wider and further bands will start merging in them. Hence, diffraction effects will be visible less clearly.
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Practice questions from Concepts of Physics (HC Verma Part I)

Question 1
Hard
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Views: 5,723

Plane microwaves are incident on a long slit of width 5.0 cm. Calculate the wavelength of the microwaves if the first diffraction minimum is formed at θ = 30°.
Topic

Topic:

Wave Optics

Book

Book:

Concepts of Physics (HC Verma Part I)

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Question 2
Easy
Views

Views: 5,845

Two coherent sources of different intensities send waves which interfere. The ratio of maximum intensity to the minimum intensity is 25. The intensities of the sources are in the ratio ____________ .
  1. 25 : 1
  2. 5 : 1
  3. 9 : 4
  4. 625 : 1
Topic

Topic:

Wave Optics

Book

Book:

Concepts of Physics (HC Verma Part I)

View 4 solutions

Question 3
Easy
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Views: 6,269

Can we conclude from the interference phenomenon whether light is a transverse wave or a longitudinal wave?
Topic

Topic:

Wave Optics

Book

Book:

Concepts of Physics (HC Verma Part I)

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Question 4
Medium
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Views: 6,246

In a Young's double slit experiment, using monochromatic light, the fringe pattern shifts by a certain distance on the screen when a mica sheet of refractive index 1.6 and thickness 1.964 micron (1 micron = 10 m) is introduced in the path of one of the interfering waves. The mica sheet is then removed and the distance between the screen and the slits is doubled. It is found that the distance between the successive maxima now is the same as the observed fringe-shift upon the introduction of the mica sheet. Calculate the wavelength of the monochromatic light used in the experiment.
Topic

Topic:

Wave Optics

Book

Book:

Concepts of Physics (HC Verma Part I)

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Practice more questions from Wave Optics

Question 1
Medium
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Views: 5,357

In an experiment, the two slits are apart and the fringes are observed to from the plane of the slits. The distance of the 11th bright fringe from the 1st bright fringe is . The wavelength is
Topic

Topic:

Wave Optics

Book

Book:

Master Resource Book in JEE Main Physics (Arihant)

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Question 2
Medium
Views

Views: 6,064

If, an interference pattern has maximum and minimum intensities in ratio, then what will be the ratio of amplitudes?
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Topic:

Wave Optics

Book

Book:

Master Resource Book in JEE Main Physics (Arihant)

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Question 3
Medium
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In Young's double slit experiment, interference pattern is found to have an intensity ratio between bright and dark fringes as 9 . Then amplitude ratio will be :
  1. 1
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  3. 9
  4. 3
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Topic:

Wave Optics

Book

Book:

Physics Galaxy Optics and Modern Physics Vol 4 (Ashish Arora)

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Question 4
Medium
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Views: 6,087

Match the following two columns.
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Topic:

Wave Optics

Book

Book:

Optics And Modern Physics (DC Pandey)

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Practice questions on similar concepts asked by Filo students

Question 1
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Your engineering department is asked to evaluate the performance of a new 370-hp sports car. You know that 27% of the engine’s power can be converted to kinetic energy of the 1200-kg car, and that the power delivered is independent of the car’s velocity. What do you report for the time it will take to accelerate from rest to 60 mi/h on a level road?
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Topic:

Physics

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Question 2
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A uniform beam of length 1.0 and mass is attached to a wall by a cable, as shown in Figure P8.15. The beam is free to pivot at the point where it attaches to the wall. What is the tension in the cable?
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Question 3
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Electric Chat and Field trew. the maiginude of the atate force om eacts is sgveri by Whichat but umeharated spliere touches A. the eharkges redistribute A and and. by aymmetry, each sphere carries a charge . ithrly, after D touches B. the redistributed charke om cach is 2. Now, if the separation between ard is halved, the maggitude hhe electrostatic force on each is is the electrostatic force on , due to , remains unaltered. Forces between Multiple Charges itual electric force between two charges is given ulomb's law. How to calculate the force on a where there are not one but several charges id? Consider a system of stationary charges in vacuum. What is the force on due ? Coulomb's law is not enough to answer destion. Recall that forces of mechanical origin cording to the parallelogram law of addition. Is ime true for forces of electrostatic origin? perimentally, it is verified that force on any due to a number of other charges is the vector sum of all the forces on that charge due to the other charges, taken one at a time. The individual forces are unaffected due to the presence of other charges. This is termed as the principle of superposition. To better understand the concept, consider a system of three charges and , as shown in ig. 1.8(a). The force on one charge, say , due to two ther charges can therefore be obtained by forming a vector addition of the forces due to each of these charges. Thus, if the force on due to lenoted by is given by . (1.3) even though er charges are present. Thus, the same way, the force on due to , denoted is given by FIGURE 1.8 charges
Topic

Topic:

Electrostats

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Question 4
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The negative sign in 4 sigerified force is in the sign in signifies that the electrostatic The total electron ene direction. potential Total energy of an electron is negative which implies that electron is bound to the nucleus. TOPIC 2 MIC SPECTRA the gas. This is called absorption spectrum of the material of the gas. PIC 3 F THE HYDROGEN ATOM Example 1.1: Assertion (A): A simple Bohr model cannot be directly applied to calculate the energy levels of an atom with many electrons. Reason (R): Electrons experience force due to neighbouring electrons in different shells.
  1. Both (A) and (R) are true and (R) is the correct explanation of .
  2. Both (A) and (R) are true but (R) is not the correct explanation of .
  3. (A) is true but (R) is false.
  4. (A) is false and (R) is also false.
Topic

Topic:

Mechanics

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Question Text
Whether the diffraction effects from a slit will be more clearly visible or less clearly if the slit-width is increased?
TopicWave Optics
SubjectPhysics
ClassClass 12
Answer TypeText solution:1
Upvotes93