Question

A metal ball suspended from a spring balance is

immersed in water at $4^{0}C$. If the temperature of

water is changed the reading in the balance

(a) may decreases

(b) increases

(c) may remains same

• A. only (c) is true
• B. (b) is true
• C. (a) & (c) are true
• D. (b) & (c) are true

Answer 1

Answer: (B)

(b) is true

Since density of water is maximum at 4 degree therefore if temperature is changed its density will decrease and therefore, upthrust decreases and hence, reading in spring balance will increase.
Hence option (B)