A 20 N metal block is suspended by a spring balance. A beaker containing some water is placed on a weighing machine which reads 40 N . The spring balance is now lowered so that the block gets immersed in the water. The spring balance now reads 16 N . The reading of the weighing machine will be

Question

A 20 N metal block is suspended by a spring balance. A beaker containing some water is placed on a weighing machine which reads 40 N . The spring balance is now lowered so that the block gets immersed in the water. The spring balance now reads 16 N . The reading of the weighing machine will be (A) 36 N (B) 60 N (C) 44 N (D) 56 N

Tardigrade Admin · Accepted Answer

Let Reading of spring balance =R1 And reading of weighing machine be =R2 ∴ R1+R2=w1+w2 16+R2=20+40 R2=44N

$36 N$

$60 N$

$44 N$

$56 N$

Let Reading of spring balance $= R_{1}$
And reading of weighing machine be $= R_{2}$
$∴$ $R_{1} + R_{2} = w_{1} + w_{2}$
$16 + R_{2} = 20 + 40$
$R_{2} = 44 N$

Q. A 20N metal block is suspended by a spring balance. A beaker containing some water is placed on a weighing machine which reads 40N . The spring balance is now lowered so that the block gets immersed in the water. The spring balance now reads 16N . The reading of the weighing machine will be

36N

60N

44N

56N

Let Reading of spring balance =R1​ And reading of weighing machine be =R2​ ∴ R1​+R2​=w1​+w2​ 16+R2​=20+40 R2​=44N

$36 N$

$60 N$

$44 N$

$56 N$

Let Reading of spring balance $= R_{1}$
And reading of weighing machine be $= R_{2}$
$∴$ $R_{1} + R_{2} = w_{1} + w_{2}$
$16 + R_{2} = 20 + 40$
$R_{2} = 44 N$