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प्रश्न
Complete the following:
1 mean solar day = _______ s.
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उत्तर
1 mean solar day = 86400 s
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संबंधित प्रश्न
Complete the following : 1 mg =………kg
Define mass.
Complete the rollowing:
1 u = ____ kg
The distance between Delhi and Chennai can be measured in ______.
Cross word puzzle.

Clues – Across
- SI unit of temperature;
- A derived quantity;
- Mass per unit volume;
- Maximum volume of liquid a container can hold
Clues – Down
- A derived quantity
- SI unit of volume
- A liquid denser than iron
- A unit of length used to measure very long distances
If no object is placed on the hook, then the pointer of the spring balance reads ______.
Write one example of the following type of motion.
Rectilinear
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 question.
- 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.
