ECAT Pre Engineering Physics Chapter 9 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 9 Physical Optics

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 9 Physical Optics

  • Total Questions15

  • Time Allowed20

Start Test Download PDF

Physics ECAT Pre Engineering Chapter 9 Physical Optics

00:00
Question # 1

Laws of reflection and refraction can also be explained by:

Question # 2

The distance from eye to near point is taken as:

Question # 3

The cause of mirage observed in deserts in bright sunlight is due to

Question # 4

The superposition of the two waves of same frequency and amplitude travelling in the same direction gives to an effect called

Question # 5

The focal length of convex lens having magnifying power of 5.55 is:

Question # 6

The wave nature of light was proposed by:

Question # 7

The least distance of distinct vision is:

Question # 8

Electromagnetic waves transport:

Question # 9

If the object is situated at focus of a convex lens, then its image is formed at:

Question # 10

A convex lens acts as diverging lens when the object is placed:

Question # 11

If the object is placed at 12 cm distance from a convex lens of focal length 6 cm, then we get an image of ____ as that of object:

Question # 12

The magnifier forms a virtual image of the object at:

Question # 13

In order to get interference using two light rays

Question # 14

A grating with high resolving power can distinguish _______ difference in wavelengths :

Question # 15

In an interference pattern of Young's double slit(YDS) experiment:

Submit

Prepare Complete Set Wise Physics ECAT Pre Engineering Chapter 9 Physical Optics MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of Physics ECAT Pre Engineering Chapter 9 Physical Optics MCQ`s Test

  • F
    Farzand Shah Farzand Shah 17 - Apr - 2024 01 Min 00 Sec 60/60
  • D
    Deuspeu 25 - Sep - 2024 01 Min 40 Sec 60/60
  • U
    Umarkhan35429@gmail.com Khan 04 - May - 2024 05 Min 00 Sec 60/60
  • H
    Haq Nawaz 16 - May - 2024 02 Min 31 Sec 55/60
  • M
    M Saifullah 20 - Jul - 2024 04 Min 06 Sec 55/60
  • D
    Danish Mehmood Awan 08 - Mar - 2024 04 Min 25 Sec 55/60
  • M
    moeez farooq 06 - Mar - 2024 43 Min 27 Sec 55/60
  • M
    M Umer Arain 10 - Nov - 2024 00 Min 15 Sec 50/60
  • A
    Adan Zahra 14 - Mar - 2024 01 Min 22 Sec 50/60
  • H
    Huzaifa Asim 25 - May - 2024 01 Min 32 Sec 50/60
  • A
    Arian Ahmed 06 - Mar - 2024 00 Min 03 Sec 45/60
  • A
    afzal ibrahim 06 - Mar - 2024 01 Min 55 Sec 45/60
  • A
    Ayesha Sohail 03 - Jun - 2024 03 Min 04 Sec 45/60
  • A
    Alishba Dabeer 02 - Jun - 2024 03 Min 25 Sec 45/60
  • T
    Tamshi Sohail 21 - Apr - 2024 06 Min 48 Sec 45/60

ECAT Physics Chapter 9 Important MCQ's

Sr.# Question Answer
1 Electromagnetic waves transport:
A. Energy only
B. Momentum only
C. Both A and B are correct
D. None of is correct
2 Speed of light in vacuum depends upon:
A. Frequency
B. Wavelength
C. Amplitude
D. None of these
3 A convex lens acts as diverging lens when the object is placed:
A. Between F and 2F
B. At 2F
C. With focal length
D. Beyond 2F
4 The distance from eye to near point is taken as:
A. 10 cm
B. 15 cm
C. 20 cm
D. 25 cm
5 Which one of the following can act approximately as a source of monochromatic light;
A. Neon lamp
B. Fluorescent tube
C. Sodium lamp
D. None of these
6 The speed of the secondary wavelets as mentioned in Huygen's principle is _____ the speed of propagation of the wave itself.
A. Equal to
B. Greater than
C. Smaller than
D. None of these
7 The contrast in the fringes in an interference pattern depends upon
A. Fringe width
B. Relative difference intensities of the two sources
C. Distance between the slits
D. Wavelength
8 In YDS experiment, fringe spacing means the distance between two consecutive ____fringes.
A. Bright
B. Dark
C. Any of A and B
D. None of these
9 How is the image formed by a convex lens affected if the upper half of the lens is covered with a paper:
A. The upper half of the image is cut off
B. The brightness of the image is reduced
C. The brightness of the image is increased
D. No effect at all
10 A line which represents the direction of travel of a wave is known as:
A. Spherical Wavefront
B. Locus
C. Ray
D. Either B or C

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!