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

The magnifier forms a virtual image of the object at:

Question # 2

Light waves are:

Question # 3

The contrast in the fringes in an interference pattern depends upon

Question # 4

A prism splits a beam of white light into seven component colors. This is so because

Question # 5

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 # 6

The locus of all points in a medium having same phase of vibration is called

Question # 7

In YDS experiment, fringe spacing means the distance between two consecutive ____fringes.

Question # 8

A line which represents the direction of travel of a wave is known as:

Question # 9

Wave length of that color as compared to that of violet color is:

Question # 10

The least distance of distinct vision is:

Question # 11

Light appears to travel in straight line because

Question # 12

The wave nature of light was proposed by:

Question # 13

Huygen's principles states that:

Question # 14

If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by blue light of the same intensity

Question # 15

If the focal length of the convex lens is 5 cm, then to get the real and inverted image of the same size as that of object, the object should be placed at:

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 The wave nature of light was proposed by:
A. Newton
B. Thomas Young
C. Huygen
D. None of these
2 The ratio of the diameter of two convex lenses is _____-the ratio of their focal lengths:
A. Greater than
B. Less than
C. Equal to
D. None of these
3 In case of constructive interference of two waves, the amplitude of the resultant wave is _______ either of the waves:
A. Greater than
B. Equal to
C. Smaller than
D. None of these
4 A prism splits a beam of white light into seven component colors. This is so because
A. Phase of different colors is different
B. Amplitude of different colors is different
C. Wavelength of different colors is different
D. Velocity of different colors is different
5 For the virtual image, option _______ is not correct:
A. 1/p = 1/f -1/q
B. 1/f = 1/p -1/q
C. 1/p=1/p-1/f
D. 1/p=1/f+1/q
6 Least distance of distinct vision of an old man possibly becomes:
A. A little less than 25 cm
B. A little more than 25 cm
C. Much less than 25 cm
D. None of these
7 Frequency of red color as compared to that of violet color is:
A. Equal
B. Smaller
C. Greater
D. None of these
8 The least distance of distinct vision is:
A. 10 cm
B. 25 cm
C. 50 cm
D. 100 cm
9 If the focal length of the convex lens is 5 cm, then to get the real and inverted image of the same size as that of object, the object should be placed at:
A. 5 cm
B. 20 cm
C. 10 cm
D. 15 cm
10 The locus of all the points in the same phase of vibration is called:
A. Wave packet
B. Wave front
C. Wave number
D. None of them

Test Questions