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.
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Question 361:
I. Coherence
II. Same frequency
III. Same wavelength
IV. Same Intensity
Which of the conditions above are necessary to produce interference fringes?
Options:
A) I and III
B) I, II and IV
C) I, II and III
D) II and III
Show Answer
The correct answer is C .
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Question 362: The specific latent heat of vaporization of a substance is always
Options:
A) less than its specific latent heat of fusion
B) greater than its specific heat of fusion
C) equal to its specific latent heat of fusion
D) all of the above depending on the nature of the substance
E) none of the above
Show Answer
The correct answer is B .
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Question 363: A car accelerates uniformly from rest at 3ms-2. its velocity after traveling a distance of 24m is
Options:
A) 12ms-1
B) 144ms-1
C) 72ms-1
D) 36ms-1
Show Answer
The correct answer is A .
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Question 364: If a solid changes directly into a gas when heat is applied the process is called
Options:
A) vaporization
B) evaporation
C) sublimation
D) ionization
E) conversion
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The correct answer is C .
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Question 365: An object of weight 80kg on earth is taken to a planet where acceleration due to gravity is one-third of its value on earth. The weight of the object on the planet is
Options:
A) 48N
B) 12N
C) 27N
D) 36N
Show Answer
The correct answer is C .
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Question 366: A body which weighs 50N in air displaces 3.7kg of water when partially immersed in water. Calculate the upthrust on the body?
Options:
A) 8.7N
B) 37.0N
C) 87.0N
D) 13.0N
Show Answer
The correct answer is B .
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Question 367: The thermometric property of a constant volume thermometer is?
Options:
A) change in volume
B) differential expanssion
C) change in pressure
D) change in length
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The correct answer is C .
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Question 368:
The diagram shows a uniform meter rule AB which balances horizontally at the 90cm mark when a mass of 0.2kg is suspended from B. Calculate the mass of the meter rule.
Options:
A) 0.05kg
B) 0.20kg
C) 0.80kg
D) 1.00kg
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The correct answer is A .
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Question 369: A galvanometer of resistance 20 is to be provided with a shunt that of the whole current in a circuit passes through the galvanometer. The resistance of the shunt is
Options:
A) 2.00
B) 2.22
C) 18.00
D) 18.22
Show Answer
The correct answer is B .
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Question 370:
I. High thermal capacity.
II. High sensitivity.
III.Easy readability.
IV. Accuracy over a wide range of temperature
From the statement above, the qualities of a good thermometer are
Options:
A) I and II
B) I, II,III and IV
C) I, III and IV
D) II, III and IV
Show Answer
The correct answer is D .