GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 036

GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 036

351). Match List I(Scientist) with List II (Phenomenon) and select the correct answer using the codes given below the Lists:
List I (Scientist)                     List II (Phenomenon)
1. Gilbert two                   (A) Force between charges
2. Coulomb                      (B) Electromagnetic theory
3. Oersted                       (C) Properties of magnet
4. Maxwell                       (D) Effect of electricity on magnet

Below codes are given in order A B C D
A). 2 1 4 3
B). 3 1 4 2
C). 3 4 1 2
D). 2 4 1 3

Answer: 2 4 1 3


   
352). The working of a Bramah's press is based on
A). Boyle's Law
B). Charles's Law
C). Pascal's Law
D). Archimedes's Principle

Answer: Pascal's Law

   
353). A body moves with a constant speed along curved path. Its acceleration
A). Velocity varies in direction
B). is parallel to its velocity
C). can make any arbitrary angle with its velocity
D). is perpendicular to its velocity

Answer: Velocity varies in direction


   
354). The velocity of sound produced by a vibrating body varies
A). directly as the density of the medium
B). inversely as the density of the medium
C). directly as the frequency of the medium
D). inversely as the frequency of the medium

Answer: inversely as the density of the medium


   
355). Consider the following statements :
I. Sound waves are elastic waves.
II. In sound waves, the vibrations are perpendicular to the direction in which the wave travels.
Which of these statements is/are correct ?
A). I only
B). II only
C). Both I and II
D). Neither I nor II.

Answer: I only



356). The focal length of the lens in a photographic camera is 5 cm. What is the power of the lens ?
A). +5D
B). + 10D
C). + 15D
D). + 20D

Answer: + 20D

   
357). Five bulbs, each rated as 200 V-100 W burnt for 4 hours. What is the cost of electricity consumed if the rate is 50 paise per unit ?
A). 1 Rupee
B). 2 Rupees
C). 3 Rupees
D). 8 Rupees

Answer: 1 Rupee


   
358). A large magnet is broken into two pieces. If the lengths of two pieces are in ratio of 3 : 4, what is the ratio of their pole strengths ?
 

A). 3 : 4
B). 4 : 3
C). 1 : 1
D). 3 : 2

Answer: 1 : 1


   
359). The moon is revolving in a circular orbit around earth with a uniform speed V. If the gravitational force suddenly disappears, the moon will
A). continue to move with speed V along the original orbit
B). fall downward to earth with increasing velocity
C). finally come to rest somewhere on the original path
D). move with the velocity V tangentially to the original orbit

Answer: move with the velocity V tangentially to the original orbit