Thermal Properties of Matter Test

Result

Thermal Properties of Matter Test - 26

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Weekly Quiz Competition

Question 1
4 / -1

The graph shown was obtained from the experimental measurements of the period of oscillation T for different masses M placed in the scale pan on the lower end of the spring balance. The most likely reason for the line not passing through the origin is that

A
spring did not obey Hooke’s law

B
amplitude of oscillation was too large

C
clock used needed regulation

D
mass of the pan was not neglected
Question 2
4 / -1

Two stretched membrances of areas 2 and 3 m² are placed in a liquid at the same depth. The ratio of the pressure on them is

A
1 : 1

B
2 : 3

C

D
Question 3
4 / -1

Ice is lighter than water. When ice melts the volume occupied by water is less than that of ice. Due to which the level of water go down

A
10 cm

B
20 cm

C
15 cm

D
25 cm
Question 4
4 / -1

The spring balance A reads 2 kg with a block of mass m suspended from it. A balanace B reads 5 kg when a beaker with liquid is put on the pan of the balance. The two balances are now so arranged that the hanging mass is inside the liquid in a beaker as shown in Fig.

A
the balance A will read more than 2 kg

B
the balance B will read less than 5 kg

C
the balance A will read less than 2 kg and B will read more than 5 kg

D
the balance A will read more than 2 kg and B will read less than 5 kg
Question 5
4 / -1

A vessel with water is placed on a weighing pan and it reads 0.8 g/c.c. is sunk into the water with a pin of negligible volume, as shown in Fig., keeping it sunk. The weighing pan will show a reading

A
600 g

B
632 g

C
640 g

D
640 g.
Question 6
4 / -1

A vertical glass capillary tube, open at both ends, contains some water. Which of the following shapes may be taken by the water in the tube?

A

B

C

D
Question 7
4 / -1

Water rises in a capillary tube to a certain height such that the upward force due to surface tension is balanced by 75 × 10^–4 newton force due to the weight of the liquid. If the surface tension of water is 6 × 10^–2 N/m the inner circumference of the capillary must be

A
1.25 × 10^–3 metre

B
0.50 × 10^–2 metre

C
6.5 × 10^–2 metre

D
12.5 × 10^–2 metre.

Solution
Question 8
4 / -1

A
180 ergs

B
360 ergs

C
720 ergs

D
960 ergs.

Solution
Question 9
4 / -1

The diagram shows three soap bubbles A, B and C prepared by blowing the capillary tube fitted with stop cocks S, S₁, S₂ and S₃. With stop cock S closed and stop cocks S₁, S₂ and S₃ opened

A
B will start collapsing with volumes of A and C increasing

B
C will start collapsing with volume of A and B increasing

C
volumes of A, B and C, will become equal in equilibrium

D
C and A will both start collapsing with volume of B increasing.
Question 10
4 / -1

A square wire frame of size L is dipped in a liquid. On taking out, a membrane formed. If the surface tension of liquid is T, force acting on the frame will be

A
2 TL

B
4 TL

C
8 TL

D
10 TL