GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 039

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 039

381). Consider the following statements with reference to observations made by an astronaut on the surface of moon
1. The astronaut finds that a simple pendulum continues to oscillate for a much longer time than that on the earth.
2. No atmosphere exists there.
Which of the statements given above is/are correct?
A). Only 1
B). Only2
C). Both 1 and 2
D). Neither 1 nor 2

Answer: Both 1 and 2


   
382). What is the essential difference between a terrestrial telescope and an astronomical telescope?
A). One of the lenses in a terrestrial telescope is concave
B). The final image formed in a terrestrial telescope is virtual
C). A terrestrial telescope forms an erect image while an astronomical telescope forms an inverted image
D). A terrestrial telescope forms an inverted image while an astronomical telescope forms an erect image

Answer: A terrestrial telescope forms an erect image while an astronomical telescope forms an inverted image

   
383). Which one of th following correctly represents the variation between linear momentum(P) and kinetic energy(E) of a body.
A).

B).

C).

D).

Answer: 

 
384). A motorcycle, a car and a bus all have the same kinetic energy. If equal braking forces are applied to them, they come to a halt after travelling x, y and z units of distance respectively. Which one of the following is correct?
A). x < y < z
B). x > y > z
C). x = y = Z
D). Relationship between x, y and z cannot be determined on the basis of given data

Answer: x = y = Z


   
385). What is the phenomenon of the moon to appear bigger in size as it approaches the horizons called ?
A). Atmospheric refraction of light
B). Diffraction of light
C). Scattering of light
D). Total internal reflection of light by water vapour

Answer: Atmospheric refraction of light



386). Which one of the following is the correct sequence of wavelengths of radiations?
A). UV > Green > IR > Hard X-rays
B). IR >. Green > UV > Hard X-rays
C). UV > Hard X-rays > IR > Green
D). IR > Hard X-ray > Green > UV

Answer: IR >. Green > UV > Hard X-rays


   
387). A Centigrade thermometer and a Fahrenheit thermometer are dipped into boiling water. The temperature of water is lowered till the Fahrenheit thermometer registers half of its upper fixed point. What is the corresponding fall in temperature registered by the Centigrade thermometer?
A). Half of its range of temperature between the upper and the lower fixed points
B). Approximately 41∘C
C). Approximately 59∘C
D). 18∘C

Answer: Approximately 41∘C


   
388). Which of the following does not affect the motion of a moving electron?
A). Electric field applied in the direction of motion
B). Magnetic field applied in the direction of motion
C). Electric field applied perpendicular to the direction of motion
D). Magnetic field applied perpendicular to the direction of motion

Answer: Magnetic field applied in the direction of motion


   
389). Which of the following is the most effective carrier of information?
A). Cables
B). Microwaves
C). Radio waves
D). Optical fibres

Answer: Optical fibres


   
390). Which of the following is the correct statement? The force building the nucleons inside the nucleus is
A). charge dependent
B). strong and highly repulsive
C). a central force
D). charge independent

Answer: charge independent