Liquids At Rest - Jamb Physics Past Questions and Answers

Question 61:

• JAMB 2018

An object weighs 30N in air and 21N in water. The weight of the object when completely immersed in a liquid of relative density 1.4 is

A. 25.2N
B. 17.4N
C. 12.6N
D. 9.0N

Question 62:

• JAMB 2018

A solid weighs 45N and 15N respectively in air and water. Determine the relative density of the solid

A. 0.33
B. 0.50
C. 1.50
D. 3.00

Question 63:

• JAMB 2020

A solid weighs 4.8g in air, 2.8g in water and 3.2g in Kerosine. The ratio of density of the solid to that of the kerosine is

A. 2
B. \(\frac{3}{2}\)
C. \(\frac{2}{3}\)
D. 3

Question 64:

• JAMB 2020

A hydrometer is an instrument for measuring the

A. A depth of water of water in a vessel
B. Relative density of a liquid by the method of flotation
C. Relative density of a liquid by finding the apparent loss in weight
D. Relative humidity of the air

Question 65:

• JAMB 2021

A solid weighs 10.00N in air, 6N when forcefully immersed in water, and 7.0N when fully immersed in a liquid, X. Calculate the relative density of the liquid X.

A. \(\frac{5}{3}\)
B. \(\frac{4}{3}\)
C. \(\frac{3}{4}\)
D. \(\frac{7}{10}\)