NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 1165  1168 of 2184
Access detailed explanations (illustrated with images and videos) to 2184 questions. Access all new questions we will add tracking exampattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.
Rs. 550.00 or
How to register?
Question number: 1165
» Properties of Solids & Liquids » Thermal Expansion
Question
A piece of metal weight 40 gm in air, when it is immersed in the liquid of specific gravity 1.24 at 27 °C it weighs 25 gm. When the temperature of liquid is raised to 42°C the metal piece weighs 20gm, specific gravity of the liquid at 42°C is 1.20, then the linear expansion of the metal will be
Choices
Choice (4)  Response  

a.  2.6 × 10 ^{3} / ^{o} C 

b.  3.316 × 10 ^{2} /°C 

c.  8.3 × 10 ^{3} /°C 

d.  All of the above 

Question number: 1166
» Properties of Solids & Liquids » Terminal Velocity
Question
A large open tank has two holes in the wall. One is a square hole of side L at a depth y from the top and the other is a circular hole of radius if at a depth 5y from the top. When the tank is completely filled with water the quantities of water flowing out per second from both the holes are the same. Then R is equal to
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 1167
» Properties of Solids & Liquids » Thermal Expansion
Question
The real coefficient of volume expansion of glycerin is 0.000597 per °C and linear coefficient of expansion of glass is 0.000009 per °C. Then the apparent volume coefficient of expansion of glycerin is
Choices
Choice (4)  Response  

a.  0.000558 per °C 

b.  0.00057 per °C 

c.  0.00066 per °C 

d.  0.00027 per °C 

Question number: 1168
Question
Unpolarised light of intensity 32 Wm ^{2} passes through three polarizers such that the transmission axis of the last polarizer is crossed with the first. If the intensity of the emerging light is 3 Wm ^{2}, at what angle will the transmitted intensity be maximum?
Choices
Choice (4)  Response  

a.  35° 

b.  15° 

c.  45° 

d.  75° 
