Physics Past Questions and Answers

The distance between a node and its adjacent antinode of a transverse wave is equal to?

A Half of the wavelength.
B The wavelength.
C Thrice the wavelength.
D Quarter of the wavelength.

Question 2027:

Which of the sketched graphs below illustrates the correct variation of the gravitational force, Fg between two objects and the distance, d, between the centres?

Question 2028:

A current of 2A passes through a wire of resistance 4Ω for 3 minutes. Calculate the energy lost.

A 960J
B 1440J
C 2880J
D 48J

Question 2029:

Which of the following statements about the universal gravitational constant, G, is true?

A It is fundamental quantity.
B It has dimension M-¹L³T-².
C Its S.I. unit is N m\(^2\)kg
D It is a vector quantity

Question 2030:

The sketched graph represents a progressive wave moving from the left to the right. The period the wave is 0.125s.
Determine the values of the amplitude and wavelength, respectively, of the wave.

A 8 cm; 27 cm
B 8 cm; 9 cm
C 4 cm; 9 cm
D 16 cm; 27 cm