MCQ
For performing an experiment to verify Archimedes principle, a student used a spring balance with a zero error of 4 g wt. He used to measure the weight of a solid metallic block as shown in the figure below. The solid metallic block was then lowered in water contained in an overflowing jar and the water displaced by this block was collected in graduated or measuring cylinder as shown in figure.
Image
The apparent loss in weight of the solid metallic block is:
  • A
    38 g wt
  • B
    35 g wt
  • 40 g wt
  • D
    30 g wt

Answer

Correct option: C.
40 g wt
(c) 40 g wt
Explanation: Loss in weight = Difference in reading, i.e. 84 – 44 = 40 units. [Scale is not graduated with respective units]

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The accelerated motion of a body changes due to change in:
A disused railway line has a length of $300m.$ A man puts his ear against one end of the rail and another man hits the other end with a metal hammer. Sound travels at $5000\ m/ s$ in steel. The time it takes for the sound to travel along the rail is:
A liquid is found to scatter a beam of light but leaves no residue when passed through the filter paper. The liquid can be described as:
The public health and hygiene does not involve:
One of the following processes is not a step involved in the watercycle operating in nature:
The number of valence electrons in a graphite atom is:
During an experiment hydrogen $(H2)$ and oxygen $(O2)$ gases reacted in an electric are to produce water as follows: $2\text{H}+\text{O}_2\xrightarrow{\text{Eletricity}}2\text{H}_2\text{O}$ The experiment is repeated three times and data tabulated as shown below:
Elperiment number Mass of $H_2$ reacted Mass of $o_2$ reacted Mass of $H_2O$ produced
$1$ $2g$ $16g$ $18g$
$2$ $4g$ $32g$ $36g$
$3$ - - $9g$
During $3$rd experiment the researcher forgot to list masses of $H2$ and $O2$ used. So, if the law of constant proportion is correct then find mass of $O2$ used during 3rd experiment.
A water tanker filled up to two$-$thirds of its tank with water is running with a uniform speed. When the brakes are suddenly applied, the water in its tank would:
Cells are the $.......$ structural units of living organism.
Why water is necessary for living organisms? Explain.