ECAT Pre Computer Science Chapter 9 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 9 Physical Optics

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

  • Total Questions15

  • Time Allowed20

Start Test Download PDF

ECAT Physics Chapter 9 Physical Optics

00:00
Question # 1

According to Huygen's principle

Question # 2

The magnifier forms a virtual image of the object at:

Question # 3

Which one of the following phenomenon cannot be explained on the bases of Huygen's theory

Question # 4

Laws of reflection and refraction can also be explained by:

Question # 5

In order to get interference using two light rays

Question # 6

Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be:

Question # 7

Angle between the ray of light and the corresponding wavefront is:

Question # 8

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:

Question # 9

Monochromatic light means waves of:

Question # 10

A virtual image is formed when object is placed:

Question # 11

Conventionally, all the distance p, q, f are measured from _____ of the lens:

Question # 12

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

Question # 13

In case of destructive interference of two waves, the amplitude of the resultant wave will be ____ either of the waves:

Question # 14

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

Question # 15

To see the minor details of the object by microscope, it should have:

Submit

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


Topic Test

00:00
Submit

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

  • H
    Heer 21 - Jan - 2024 00 Min 29 Sec 60/60
  • V
    Vertex Gaming 16 - Jul - 2024 00 Min 47 Sec 55/60
  • T
    Tasser Haider 31 - May - 2024 01 Min 13 Sec 50/60
  • M
    Maham Mehar 31 - Jul - 2024 02 Min 42 Sec 50/60
  • M
    Manoush Fatima 31 - May - 2024 03 Min 21 Sec 50/60
  • A
    Abdullah Baloch 27 - Jul - 2024 03 Min 48 Sec 50/60
  • E
    Esha Azeem 03 - Dec - 2023 15 Min 03 Sec 50/60
  • M
    Muhammad Hashim 02 - Jun - 2024 02 Min 01 Sec 45/60
  • A
    Ayan Shuaib 29 - Jan - 2024 02 Min 23 Sec 45/60
  • M
    Muhammad Abdur.Rahman Khan 30 - Aug - 2024 03 Min 51 Sec 45/60
  • H
    Hira Maqsood 20 - Feb - 2024 07 Min 03 Sec 45/60
  • S
    suzi 09 - Feb - 2026 01 Min 42 Sec 44/60
  • M
    M.Faiq 22 - May - 2024 02 Min 46 Sec 40/60
  • M
    Muhammad Sadaqat 10 - Mar - 2023 03 Min 54 Sec 40/60
  • H
    Haseeb Ur Rehman raja 25 - Jun - 2024 05 Min 10 Sec 40/60

ECAT Physics Chapter 9 Important MCQ's

Sr.# Question Answer
1 The magnifier forms a virtual image of the object at:
A. None of these
B. Least distance of distinct vision
C. Much farther than the least distance
D. Both A and B are correct
2 Angle between the ray of light and the corresponding wavefront is:
A. 0°
B. 60°
C. 90°
D. 120°
3 In order to get interference using two light rays
A. The sources should be monochromatic and coherent
B. The sources should have the same frequency
C. Superposition should be linear
D. All of these
4 The superposition of the two waves of same frequency and amplitude travelling in the same direction gives to an effect called
A. Diffraction
B. Interference
C. Polarization
D. Dispersion
5 The distance from eye to near point is taken as:
A. 10 cm
B. 15 cm
C. 20 cm
D. 25 cm
6 The property of light which does not change with the nature of the medium is:
A. Frequency
B. Amplitude
C. Wavelength
D. None of these
7 Certain light of wavelength 600 nm is used to view an object under the microscope. If the aperture of its objective is 1.22 cm, then the limiting angle of resolution will be:
A. 6 x 10-5rad
B. 7 x 10-5rad
C. 8 x 10-5rad
D. None of these
8 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:
A. Double the size
B. Same size
C. Half the size
D. None of these
9 Monochromatic light means waves of:
A. Same frequency
B. Same colour
C. Same wavelength
D. All of them
10 The image of the tip of a needle is never sharp because of
A. Polarization of light
B. Interference of light
C. Diffraction of light
D. Reflection of light

Test Questions

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!