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.
Which mirror is used as a rear-view mirror in vehicles?
The reason why the Sun appears reddish at sunrise and sunset is -
The sea appears blue due to -
The Sun appears red while setting due to -
We see green grass as green because -
What will be the nature of the image formed by a convex mirror for an object placed between infinity and the pole P of the mirror?
Which type of mirror is used for rearview observation of traffic in a car?
Which of the following colour combinations in an umbrella is most suitable for protection from sunlight?
The sky appears blue because -
The sky appears blue because -
The blue colour of the sky is due to -
Which of the following types of mirrors is used to view traffic coming from behind a car?
The sky appears blue on account of light's -
The concept of an expanding universe is based on -
Suppose a rocket ship is receding from the Earth at a speed of 2/10 of the velocity of light. Light which appears blue to passengers inside the rocket will appear to an observer on Earth as -
Assertion (A): Danger signals are made of red colour. Reason (R): Red colour suffers the least scattering. Select the correct answer using the code given below:
When the sky is observed from an aeroplane flying at a high altitude, it appears -
When light passes from one medium to another, which of the following remains unchanged?
The principle on which optical fibre works is -
Why does a cut diamond sparkle brilliantly?
'Raman Effect' deals with light rays passing through -
The technique used to transmit audio signals in television broadcast is -
The apparent flattened/elliptical shape of the Sun and Moon near the horizon is due to -
When a ray of light travels from a denser medium to a rarer medium, then -
An endoscope is -