Comprehensive collection of questions from General Science asked in recent state service examinations. Each question is verified with official answer keys and step-by-step bilingual solutions.
Light consists of seven colours. What is the method of separating these colours?
The correct sequence of colours in a rainbow is -
Which of the following colours is seen in the middle of a rainbow?
Consider the following statements - 1. If a person looks at a coin placed at the bottom of a bucket filled with water, the coin appears closer than its actual depth. 2. If a person underwater looks at a coin held above the water surface, the coin appears at a greater height than its actual position. Which of the statements given above is/are correct?
Which one of the following statements is not correct?
An air bubble in water behaves like an -
With reference to a person suffering from hypermetropia (long-sightedness), which of the following statements is not correct?
Which of the following lenses is used to correct myopia (short-sightedness)?
In which direction is a rainbow visible at 12:00 noon?
Reading glasses used for reading fine print are made of which type of lenses?
Assertion (A): A stick partly immersed obliquely in water appears shortened and bent at the water surface when viewed from the side. Reason (R): Light from the stick undergoes scattering by water molecules, producing the impression of a shortened and bent stick. Code:
Myopia (short-sightedness) is corrected with a -
The minimum length of a mirror required for a 1.50 metre tall person to see their complete standing image is -
The radius of curvature of a plane mirror is -
When an object is placed between two parallel plane mirrors, the number of images formed is -
To correct hypermetropia (farsightedness), one uses a -
Myopia is corrected by using -
An air bubble inside water behaves like a -
When a person enters a dark room from a brightly lit area, they cannot see clearly for some time, but gradually objects become visible. This is due to -
Assertion (A): Small glass beads fixed on traffic road signs sparkle brightly when light falls on them. Reason (R): Light is totally reflected when the angle of incidence exceeds a certain critical value as light travelling through a denser medium encounters a rarer medium. Code:
Dispersion of light is possible through -
To see one's full image in a plane mirror, the minimum height of the mirror should be -
Accommodation in the human eye is brought about by -
Red light is used for danger signals because -
An astronaut perceives the colour of the sky as -