GENERAL SCIENCE PHYSICS ONE LINERS FOR TNPSC UPSC SSC SET 042
411). The wavelength of the X-rays
A). is longer than the wavelength of sound waves
B). is longer than the wavelength of the yellow sodium light
C). is longer than the wavelength of radio waves
D). is of the order of 0.1 nanometer
Answer: is of the order of 0.1 nanometer
412). A bullet travelling horizontally hits a block kept at rest on a horizontal surface and gets embedded into it, the two together then move with a uniform velocity.
Which one of the following conservation laws holds
A). conservation of angular momentum
B). conservation of kinetic energy
C). conservation of linear momentum
D). conservation of velocity
Answer: conservation of linear momentum
413). A negatively charged glass rod has always
A). less electrons than protons
B). less electrons than neutrons
C). less protons than electrons
D). less neutrons than protons
Answer: less protons than electrons
414). Consider the following statements:
If the same note is played on a flute and a sitar, one can still distinguish between them because a they differ in
1. frequency
2. intensity
3.quality
of these correct statement(s) is (are)
A). 1 and 2 only
B). 2 and 3 only
C). 3 only
D). 2 only
Answer: 3 only
415). One unit of electric power is consumed when
A). 1 A of current flows for 1 sec at 220 V
B). 1 A of current flows of 1 sec at 1 V
C). 100 A of current flows of 1 sec at 10 V
D). 10 A of current flows for 1 hour at 100 V
Answer: 10 A of current flows for 1 hour at 100 V
416). Consider the following statement :
Sound waves can undergo
1. reflection
2. refraction
3. interference
Of these correct statement(s) is (are)
A). 1 and 2 only
B). 2 and 3 only
C). 1 and 3 only
D). 1, 2 and 3
Answer: 1, 2 and 3
417). In out houses were get 200 V a.c. What does the value 220 V represent?
A). Constant voltage
B). Effective voltage
C). Average voltage
D). Peak voltage
Answer: Effective voltage
418). Electromagnetic radiations are emitted by which of the following ?
A). Only by radio and television transmitting antennas
B). Only by bodies at temperature higher than their surrounding
C). Only by red-hot bodies
D). By all bodies
Answer: Only by bodies at temperature higher than their surrounding
419). A block of ice is floating in a beaker containing liquid of specific gravity greater than one. When ice melts completely, what happens to the level of liquid in the beaker?
A). It will remain in the same as before
B). It will go down
C). It will rise up
D). It may or may not change depending upon size of beaker
Answer: It will rise up
420). A cord is used to lower vertically a block of mass M through a distance d at a constant downward acceleration g/4
Consider the following statements :
1. The block is freely falling under gravity
2. The cord is doing work on the block
3. The amount of work done is (3 Mgd)/4
Of these correct statement(s) is (are)
A). 1 and 2 only
B). 1 and 3 only
C). 2 and 3 only
D). 1 2 and 3
Answer: 2 and 3 only
A). is longer than the wavelength of sound waves
B). is longer than the wavelength of the yellow sodium light
C). is longer than the wavelength of radio waves
D). is of the order of 0.1 nanometer
Answer: is of the order of 0.1 nanometer
412). A bullet travelling horizontally hits a block kept at rest on a horizontal surface and gets embedded into it, the two together then move with a uniform velocity.
Which one of the following conservation laws holds
A). conservation of angular momentum
B). conservation of kinetic energy
C). conservation of linear momentum
D). conservation of velocity
Answer: conservation of linear momentum
413). A negatively charged glass rod has always
A). less electrons than protons
B). less electrons than neutrons
C). less protons than electrons
D). less neutrons than protons
Answer: less protons than electrons
414). Consider the following statements:
If the same note is played on a flute and a sitar, one can still distinguish between them because a they differ in
1. frequency
2. intensity
3.quality
of these correct statement(s) is (are)
A). 1 and 2 only
B). 2 and 3 only
C). 3 only
D). 2 only
Answer: 3 only
415). One unit of electric power is consumed when
A). 1 A of current flows for 1 sec at 220 V
B). 1 A of current flows of 1 sec at 1 V
C). 100 A of current flows of 1 sec at 10 V
D). 10 A of current flows for 1 hour at 100 V
Answer: 10 A of current flows for 1 hour at 100 V
416). Consider the following statement :
Sound waves can undergo
1. reflection
2. refraction
3. interference
Of these correct statement(s) is (are)
A). 1 and 2 only
B). 2 and 3 only
C). 1 and 3 only
D). 1, 2 and 3
Answer: 1, 2 and 3
417). In out houses were get 200 V a.c. What does the value 220 V represent?
A). Constant voltage
B). Effective voltage
C). Average voltage
D). Peak voltage
Answer: Effective voltage
418). Electromagnetic radiations are emitted by which of the following ?
A). Only by radio and television transmitting antennas
B). Only by bodies at temperature higher than their surrounding
C). Only by red-hot bodies
D). By all bodies
Answer: Only by bodies at temperature higher than their surrounding
419). A block of ice is floating in a beaker containing liquid of specific gravity greater than one. When ice melts completely, what happens to the level of liquid in the beaker?
A). It will remain in the same as before
B). It will go down
C). It will rise up
D). It may or may not change depending upon size of beaker
Answer: It will rise up
420). A cord is used to lower vertically a block of mass M through a distance d at a constant downward acceleration g/4
Consider the following statements :
1. The block is freely falling under gravity
2. The cord is doing work on the block
3. The amount of work done is (3 Mgd)/4
Of these correct statement(s) is (are)
A). 1 and 2 only
B). 1 and 3 only
C). 2 and 3 only
D). 1 2 and 3
Answer: 2 and 3 only
Magme Guru is India's Biggest learning free App for Aspirants who are competing for all government exams with more than 2350+ Subjects and 523+ Exams.
No comments:
Post a Comment