Question

Question 3 Which of the following produces an attractive force between two large bodies gravitation positive charge on each negative charge on each north magnetic poles facing each other south magnetic poles facing each other

Answer 1

Answer 3. The force of gravitation which is acts on two bodies which carries mass m1 and m2 is always attractive.

So, we can say that force of gravity is always attractive.

Correct option is (a).

4. We know that work done = change in kinetic energy so If an object has some energy than is always able to do some work. So option (b) is correct.

5. We know that in spectrum red has lowest wavelength and lowest frequency or energy.

So option (e) is correct.