Advertisements
Advertisements
प्रश्न
उत्तर
Parsec refers to the distance at which an arc of length equal to 1 astronomical unit subtends an angle of one second at a point.
No, a parsec is not the same as the astronomical unit (A.U.).
1 Parsec = 2 X 105 A.U.
APPEARS IN
संबंधित प्रश्न
'The distance of a star from the earth is 8.33 light minutes.' what do you mean by this statement? Express the distance in metre.
What do you understand by the term order of magnitude of a quantity?
Name three units of length which are bigger than a meter. How are they related to the meter?
Mohana bought 2 kg 600 g grapes and 1 kg 450 g guavas. How much more did Mohana buy grapes than guavas, by weight?
Questions based on Higher Order Thinking Skills:
|
There are three spheres A, B, C as shown below. Sphere A and B are made of same material. Sphere C is made of a different material. Spheres A and C have equal radii. The radius of sphere B is half that of A. Density of A is double that of C.
|
Now answer the following questions:
- Find the ratio of masses of spheres A and B.
- Find the ratio of volumes of spheres A and B.
- Find the ratio of masses of spheres A and C.
Define measurement.
How will you measure the weight of the object with irregular shapes?
The melting point of pure ice (0° C) is taken as ______ fixed point.
Three students measured the length of a corridor and reported their measurements. The values of their measurements were different.
What could be the reason for difference in their measurements? (Mention any three)
Questions based on Higher Order Thinking Skills:
|
There are three spheres A, B, C as shown below. Sphere A and B are made of same material. Sphere C is made of a different material. Spheres A and C have equal radii. The radius of sphere B is half that of A. Density of A is double that of C.
|
Now answer the following questions.
- Find the ratio of masses of spheres A and B.
- Find the ratio of volumes of spheres A and B.
- Find the ratio of masses of spheres A and C.
