Astronomical Unit

Q.

Which of the below-given options is/are not the unit of time?

1. Second

2. Parsec

3. Year

4. Light year

Q. The average distance between the Earth and the Sun is called .

1. light year
2. astronomical unit
3. parsec

Q.

What is Light Year?

Q. The appropriate unit for measuring the distance of stars from the earth is:

1. Light year
2. Kilometre
3. Mega-metre
4. Millimetre

Q.

1 parsec is equal to

1. 3.26 AU

2. 3.26 ly

3. 3.26 $\dot{A}$

4. None of these

Q. Name the unit used to measure the distance between celestial objects.

Q. Name the unit used to measure the distance between celestial objects.

Q. 1 astronomical unit is greater than 1 light year.

1. True
2. False

Q. 1 astronomical unit is equal to:

1. $2.475\times {10}^{11}km$
2. $1.496\times {10}^{11}km$
3. $1.496\times {10}^{14}km$
4. $2.475\times {10}^{14}km$

Q.

One light year is_________

1. $9.46\times$ ${10}^{12}km$

2. $64\times$${10}^{12}km$

3. $84.6\times$ ${10}^{12}km$

4. $96.4\times$ ${10}^{12}km$

Q.

One light year is equal to ______.