Properties of Solids & Liquids-Surface Energy and Surface Tension (NEET Physics): Questions 12 - 14 of 23

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2098 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 12

» Properties of Solids & Liquids » Surface Energy and Surface Tension

MCQ▾

Question

A film of water is formed between two straight parallel wires of length 10 cm each separated by 0.5 cm. If their separation is increased by 1 mm while still maintaining their parallelism, how much work will have to be done (Surface tension of water = 70 × 10 -2 N/m)

Choices

Choice (4) Response

a.

2.88 × 10 -5 Joule

b.

1.44 × 10 -5 Joule

c.

7.22 × 10 -6 Joule

d.

5.76 × 10 -5 Joule

Question number: 13

» Properties of Solids & Liquids » Surface Energy and Surface Tension

MCQ▾

Question

Which graph represents the variation of surface tension with temperature over small temperature ranges for water?

Choices

Choice (4) Response

a.

Curve of Surface tension → Temparature. choice A.

Curve of Surface Tension → Temparature. Choice a.

Figure shows the graph of Surface Tension vs temperature, which; is not linear.

b.

Curve of Surface tension → Temparature.Choice B

Curve of Surface Tension → Temparature. Choice B

Figure shows the graph of Surface Tension vs temperature, which; is not linear.

c.

Curve of Surface tension → Temparature. Choice C

Curve of Surface Tension → Temparature. Choice C

Figure shows the graph of Surface Tension vs temperature, which; is not linear.

d.

Curve of Surface tension → Temparature. Choice D

Curve of Surface Tension → Temparature. Choice D

Figure shows the graph of Surface Tension vs temperature, which; is not linear.

Question number: 14

» Properties of Solids & Liquids » Surface Energy and Surface Tension

MCQ▾

Question

Radius of a capillary tube is 2 x 10 -3 m. A liquid of weight 6.28 x 10 -4 N may remain in the capillary tube then the surface tension of liquid will be

Choices

Choice (4) Response

a.

5 x 10 -2 N/m

b.

5 x 10 -3 N/m

c.

50 N/m

d.

5 N/m

Sign In