Star

Q. A group of stars identified into shapes are called ___.

1. asteroids
2. meteorites
3. satellites
4. constellations

Q. Write a brief note on 'Nakshatras'.

Q.

What colour is Venus?

Q. Stars twinkle because of ___.

1. dispersion of light
2. total internal reflection of light
3. refraction of light
4. reflection of light

Q. The luminance and shape of some stars is not stable. These stars are called ____________.

1. Super Nova
2. Variable Stars
3. Red Giants
4. Twin Stars

Q. Statement 1: Ursa major is found in the southern part of the sky and it can be used to locate the Pole star.
Statement 2: Cassiopeia constellation is known as the falling queen.

1. Statement 1 is false but statement 2 is true.
2. Both the statements are true.
   
3. Statement 1 is true but statement 2 is false.
4. Both the statements are false.
   

Q.

Which of the following revolves around a planet?

1. Satellite

2. Star

3. Comet

4. Asteroid

Q. Light travels 1 foot in approximately how much time?

1. 1 hour
2. 1 nano-second
3. 1 minute
4. 1 second

Q. Why are stars not visible during the day?

1. Because the shadow of the Earth falls on them.
2. Because their light cannot reach Earth during the day.
3. Because of the bright light of the Sun.
4. Because they are covered by clouds.

Q.

What is light ?

Q. The biggest satellite of the Earth is:

1. Meteor
2. Sun
3. Moon
4. Meteorite

Q.

Can time be stopped?

Q.

Give a reason why Stars twinkle in the sky?

Q.

The approximate number of stars in the galaxy milky way is:

1. 150, 000 million

2. 100, 000 million

3. 15, 000 million

4. 200, 000 million

Q. Nearest star to the Earth is:

1. Proxima Centauri
2. Sirius
3. Altair
4. Sun

Q.

Stars release energy due to the ________ of hydrogen.

Q. The nearest star to the earth is ___________.

1. Moon
2. Proxima centauri
3. Sirius
4. Sun

Q. Which of the following are members of Solar system?

1. Asteroids
2. Shooting star
3. Sun
4. Artificial satellite

Q. Do the planets twinkle like stars? (Yes/ No)

Q. ________ is the brightest star of the night sky.

1. Alpha Persei
2. Sirius
3. Pole star
4. Vega

Q. Statement 1: Young stars are blue in colour.
Statement 2: Old stars are red in colour.
Which of the following is correct?

1. Statement 1 is true but statement 2 is false.
2. Statement 1 is false but statement 2 is true.
3. Both the statements are true.
4. Both the statements are false.

Q. The axis of the Earth is inclined to its orbital plane at an angle of:

1. 66.5'
2. 23.5'
3. 65.5'
4. 25.3'

Q. Pole Star is a member of the solar system.

1. True
2. False

Q. Any heavenly body having light of its own is called a

1. nebulae
2. star
3. comet
4. meteorite

Q. The Hertzsprung-Russell Diagram

1. most stars have the same temperature.
2. is based on the principle that the intrinsic brightnesses of most stars are related to their temperatures.
3. was developed in the 1950s by two American astronomers working for NASA.
4. while of great utility for most large stars, has proven of little value in classifying small stars like our sun.

Q. Betagluese is a star which is larger than sun by

1. $100$ times
2. $300$ times
3. $700$ times
4. $1000$ times

Q. Which of the following statement is true?

1. Alpha centauri is a Sun like star.
2. Luminance and shape of variable stars is stable.
3. Binary star system consists of two stars that revolve around each other.
4. Super Nova has a diameter more than a hundred times greater than that of the sun.

Q.

1. 1
2. 2
3. 3
4. 4

Q. Stars have different colours because of their temperature.
(a) What will be the colour of a star which has a very large surface temperature?
(b) What is the colour of star 'Chothi'?

Q. In 2006, the IAU adopted a new definition of a planet. IAU stands for______________.

1. Indian Astronomical Union
2. International Astronomy of Universe
3. International Astronomical Union
4. Indian Astronomy of Universe