Sail E0 Webinar

General Knowledge > General Science

OPTICS MCQs

Total Questions : 5
Question 1. Optics is the study of
  1.    human eyesight
  2.    the properties of light
  3.    how light behaves when it hits different surfaces
  4.    telescopes
 Discuss Question
Answer: Option B. -> the properties of light
Question 2. What is optics?
  1.    The study of rainbows
  2.    The study of light and its properties
  3.    The study of the human eye
  4.    The study of telescopes
 Discuss Question
Answer: Option B. -> The study of light and its properties
Question 3. Which of the following phenomena is used in optical fibres?
  1.    Total internal reflection
  2.    Scattering
  3.    Diffraction
  4.    Refraction
 Discuss Question
Answer: Option A. -> Total internal reflection
Question 4. Optically active substances are those substances which
  1.    produces polarised light
  2.    produces double refraction
  3.    rotate the plane of polarization of polarised light
  4.    converts a plane polarised light into circularly polarised light.
 Discuss Question
Answer: Option C. -> rotate the plane of polarization of polarised light
Question 5. Fermat's principle states that:
  1.    The path taken by a light ray is always the shortest.
  2.    The path taken by a light ray is the one for which the optical path length is a maximum.
  3.    The path a light ray takes maximizes its time of travel between any two points.
  4.    The path taken by a light ray always minimizes the time between any two points.
 Discuss Question
Answer: Option D. -> The path taken by a light ray always minimizes the time between any two points.

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI
Tabulation - Test Paper 2 Data Interpretation Reasoning & DI
Test Paper 1 Direction Sense Test Reasoning & DI
ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0
GFM Combined 1 Free Revision Test SAIL JO E-0