Advertisements
Advertisements
प्रश्न
Express the order of magnitude of the following quantity:
12578935 m
Advertisements
उत्तर
12578935 m = 1.2578935 × 107 m
So order of magnitude = 107 m
APPEARS IN
संबंधित प्रश्न
It takes time 8 min for light to reach from the sun to the earth surface . If speed of light is taken to be `3 xx 10^8 "m/s"^-1` , find the distance from the sun to the earth in km .
State the factors which determine the number of significant figures for the calculation of the final result of an experiment.
Define standard meter.
Put the symbol in the box given below.
640 g `square` 800 g
One astronomical unit is equal to ______.
The gravity accelerates an object, and the distance fallen is proportional to ______.
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 |
Define measurement.
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.

