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प्रश्न
Complete the following: 1 year =……….s.
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उत्तर
1 year = 3.15 × 107 s
संबंधित प्रश्न
How is nanometer related to Angstrom?
Complete the following: 1 nano second =……….s.
Name the physical quantities which are measured in the given units:-
ly
Name the physical quantities which are measured in the given units:
nm
Put the symbol in the box given below.
50 g `square` 340 g
What are the rules to be followed to make accurate measurement with scale?
What is the clock used by ancient people to measure daytime?
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.
