Light changes its path as the medium changes during the transit. Why?
Light changes it path as the medium changes during the transit because speed of light is dependent on the media... View Article
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After refraction through a rectangular glass slab the emergent ray is
The extent of bending at opposite parallel faces is equal and opposite. Thus, emergent ray is parallel to incident ray.
A prism is said to be in minimum deviation when
When the angle of incidence is equal to the angle of emergence then the prism is said to be in... View Article
What is the Loud Sound that we Hear During Lightning?
The sound caused by lightning is known as thunder. The sound ranges from a sharp, loud crack to a long,... View Article
What are the uses of artificial satellites?
Artificial satellites are man-made objects that orbit the Earth and other planets in the Solar System. Soviet Sputnik 1 mission... View Article
Which of the following planets is not located between the Sun and asteroid belt?
Jupiter is an outer planet.
Planets orbit the sun in the paths which are:
Planets orbit the sun in the paths which are known as elliptical path. Each planet has its own orbit around... View Article
When does total solar eclipse occur?
A total solar eclipse takes place when the new moon comes in between the sun and the earth. The complete... View Article
A certain planet is a member of the outer planets. It rotates on its axis in the direction opposite to the direction in which the Earth rotates. Which planet is being described?
Uranus rotates from east to west while earth rotates from west to east.
Which of the following is a possible cause of change in seasons on Earth?(a) The distance between the sun and earth is not constant (b) The axis of rotation of the earth is parallel to the plane of its orbit (c) The axis of rotation of the earth is perpendicular to the plane of its orbit (d) The axis of rotation of the earth is tilted with respect to the plane of its orbit
Answer: (d) The axis of rotation of the Earth is tilted with respect to the plane of its orbit. The axis of... View Article
What is the scientific name for a shooting star?
Shooting stars are also known as falling stars but they are not related to stars. A shooting star is a... View Article
The size of a _______ increases as it moves ________ the Sun.
The size of a comet increases as it moves toward the Sun.
Between the orbits of which two planets is the Asteroid belt found?
Asteroids are small celestial objects which revolve around the Sun between the orbits of Mars and Jupiter.
Choose the right answer from the following
Which of the following options does not pair a planet with the number of prominent satellites it has? Saturn has... View Article
Which of the following was the first satellite launched by India?
A) Aryabhatta B) Bhaskara C) Rohini D) INSAT – 1A The correct option is A) Aryabhatta. Aryabhatta was the first... View Article
On which day does a lunar eclipse always occur?
A lunar eclipse always occurs on a full moon day when the sun, earth and moon lie in the same... View Article
Name a famous comet that can be seen every 75 or 76 years?
Halley’s comet can be seen every 75 or 76 years. Halley’s comet is a periodic comet and returns to earth... View Article
A full moon appears on Sunday. When is the next full moon will appear?
Answer: From Earth’s perspective, the full moon is the lunar period in which the Moon appears completely illuminated. This happens... View Article
Which of these forms the centre of the solar system? (1) Sun (2) Asteroids (3) Earth (4) Satellites
Answer: (1) Sun Sun is at the centre of the solar system. The sun is the source of heat and light and... View Article
Name the American astronaut who landed on the moon for the first time.
Neil Armstrong landed on the moon for the first time. This was achieved by sending two men on Apollo 11... View Article
