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प्रश्न
Complete the following: 1 year =……….s.
उत्तर
1 year = 3.15 × 107 s
संबंधित प्रश्न
What is meant by measurement?
Complete the rollowing:
1 u = ____ kg
State two units of mass smaller than a kilogram?
State two conditions for a beam balance to be true.
Mohana bought 2 kg 600 g grapes and 1 kg 450 g guavas. How much more did Mohana buy grapes than guavas, by weight?
These are the instruments used in measuring the volume of objects with irregular shapes ______.
Match the events related to motion in column I with the types of motions given in column II.
| Column I | Column II | ||
| (a) | A moving wheel of a sewing machine | (i) | Circular motion |
| (b) | Movement of tip of the minute hand of a clock in one hour | (ii) | Rotational motion |
| (c) | A moving swing | (iii) | Periodic motion |
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.
Questions based on Higher Order Thinking Skills:
|
There are three spheres A, B, C as shown below.
|
Now answer the following questions.
i. Find the ratio of masses of spheres A and B.
ii. Find the ratio of volumes of spheres A and B.
iii. Find the ratio of masses of spheres A and C.
