Q. Which part of human eye is affected by cataract ?
1) Iris
2) Retina
3) Cornea
4) None of the above
Q. A hot body cools from 90°C to 75°C in 25 seconds. The same body in further cooling from 75°C to 60°C will take how much time ?
1) 25 seconds
2) Less than 25 seconds
3) More than 25 seconds
4) Nothing can be said
Q. The basis of DNA finger printing is -
1) DNA replication
2) The double helix
3) DNA Polymorphism
4) Errors in base sequence
Q. Which of the following is not an example of in-situ conservation strategy ?
1) Biosphere reserve
2) Botenical garden
3) National Park
4) Sacred groves
Q. Double-helical structure of DNA was given by whom ?
1) Jacob and Monod
2) Watson and Crick
3) H.G. Khorana
4) None of the above
Q. Which one of the following frequency ranges is sensitive to human ears ?
1) 0 - 200 Hz
2) 20 - 20,000 Hz
3) 200 - 20,000 Hz only
4) 2,000 - 20,000 Hz only
Q. Which of the following statements about specific heat of a body is/ are correct ?
1. It depends upon mass and shape of the body.
2. It is independent of mass and shape of the body.
3. It depends only upon the temperature of the body
Select the correct answer using the code given below :
1) 1 only
2) 2 and 3
3) 1 and 3
4) 2 only
Q. Which one of the following is an example of the force of gravity of the earth acting on a vibrating pendulum bob ?
1) Applied force
2) Frictional force
3) Restoring force
4) Virtual force
Q. Which one of the following statements about the refractive index of a material medium with respect to air is correct ?
1) It can be either positive or negative
2) It can have zero value
3) It is unity for all materials
4) It is always greater than one
Q. Which one of the following Himalayan vegetation species is found between the altitudes of 1800 to 2600 metres ?
1) Saal
2) Chir
3) Spruce
4) Deodar
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