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Question
What is a leap year?
Solution
A leap year refers to a year in which February has 29 days and the total days in the year are 366 days.
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State two units of mass smaller than a kilogram?
Choose the correct one
What are the features that we must give importance in measuring?
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, and 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. The 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.
Which one of the following statement is wrong?
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.
