Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.
-
Question 1421: Which of the following radiations cannot be deflected by a magnetic field?
Options:
A)
B)
C)
D) and
E) none of them
Show Answer
The correct answer is C .
-
Question 1422:
Which of the following can be described as high tension transmission?
Options:
A) High resistance and low voltage
B) Low current and high voltage
C) High current and low voltage
D) High current and low resistance
Show Answer
The correct answer is B .
-
Question 1423:
When a brick is taken from the earth's surface to the moon, its mass
Options:
A) Remains constant
B) Becomes zero
C) Reduces
D) increases
Show Answer
The correct answer is A .
-
Question 1424: Calculate the force acting on an electron of charge 1.5 x 10-19C placed in an electric field of intensity 105Vm-1
Options:
A) 1.5x10-11N
B) 1.5x10-12N
C) 1.5x10-13N
D) 1.5x10-14N
Show Answer
The correct answer is D .
-
Question 1425:
A convex mirror is used as a driving mirror because
I. its image is erect
II. It has a large field of view
III. It has a long focal length
Identify the CORRECT statement(s)
Options:
A) I and III only
B) I and II only
C) II and IIII only
D) I, II and III only
Show Answer
The correct answer is B .
-
Question 1426:
Which component of fiber-optic connector has a provision of entry for the fibre along with the fixationto connector housing?
Options:
A) coupling device
B) cable
C) ferrule
D) connector housing
Show Answer
The correct answer is A .
-
Question 1427: Two tuning forks of frequency 256Hz and 260Hz are sounded close to each other. What is the frequency of the beats produced?
Options:
A) 2Hz
B) 4Hz
C) 8Hz
D) 258Hz
Show Answer
The correct answer is B .
-
Question 1428: Which of the following correctly, describes the image of an object, 4cm from a diverging lens of focal length 12cm?
Options:
A) The image is virtual, 3cm in front of the lens
B) The image is real, 6cm behind the lens
C) The image is virtual, 6cm in front of the lens
D) The image is real, 3cm in front the lens
Show Answer
The correct answer is A .
-
Question 1429: In a nuclear fusion experiment, the loss of mass amounts to 1.0 x 10-6kg. The amount of energy obtained from the fusion is
Options:
A) 3.0 x 10-4J
B) 3.0 x 10-1J
C) 9.0 x 104J
D) 9.0 x 1010J
Show Answer
The correct answer is D .
-
Question 1430: Under what conditions are cathode rays produced in a discharge tube?
Options:
A) High pressure and low voltage
B) High pressure and high voltage
C) Low pressure and low voltage
D) Low pressure and high volatge
Show Answer
The correct answer is D .