When an iron object is immersed in water, it displaces 8 kg of water. How much is the upthrust force acting on the iron object, where \[g=10m/{{s}^{2}}\]?
A)
8 N
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B)
80 N
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C)
0.8 N
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D)
18 N
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E)
None of these
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Match the following:
1.
Low pitch sound
[A]
Has large amplitude
2.
High pitch sound
[B]
Has small amplitude
3.
Soft sound
[C]
Has low frequency
4.
Louder sound
[D]
Has high frequency
A)
1 - A, 2 - C, 3 - B, 4 - D
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B)
1 - A, 2 - D, 3 - B, 4 - C
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C)
1 - C, 2 - D, 3 - B, 4 - A
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D)
1 - B, 2 - D, 3 - C, 4 - A
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E)
None of these
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Calculate the number of moles for the 84 g of He.
A)
42
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B)
21
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C)
84
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D)
24
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E)
None of these
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Which of the following statements is incorrect?
A)
Frequency is directly proportional to time period
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B)
Frequency is directly proportional to square root of time period
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C)
Frequency is inversely proportional to time period,
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D)
Frequency is inversely proportional to square root of time period
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E)
None of these
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Which of the following plant tissues does not possess living protoplasm at maturity?
A)
Collenchyma
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B)
Sclerenchyma
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C)
Epidermis
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D)
Tracheids
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E)
None of these
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A motor car is moving with a velocity of 20 m/s and it takes 2s to stop after applying the brake. Calculate the force exerted by the brakes on the motor car if its mass along with the passenger is 500 kg.
A)
500 N
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B)
5,000 N
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C)
1,000 N
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D)
100 N
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E)
None of these
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Which of the following materials falls in the category of pure substance?
A)
Air
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B)
Mercury
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C)
Blood
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D)
Milk
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E)
None of these
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Chlorine is a ________.
A)
Monoatomic element
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B)
Diatomic element
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C)
Tetra-atomic element
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D)
Poly-atomic element
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E)
None of these
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What is the frequency of the sound wave, if a source produces 1800 sound waves in 3 seconds?
A)
600 hertz
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B)
500 hertz
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C)
18 hertz
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D)
1800 hertz
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E)
None of these
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Which of the following figure shows the liquid state of the matter?
A)
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B)
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C)
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D)
All of these
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E)
None of these
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Proteins which are synthesized by the cell and then are released into outer medium of the cell, are called ______.
A)
Proenzymes
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B)
Zymogens
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C)
Secretory proteins
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D)
Exocytosis
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E)
None of these
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Which of the following has more inertia?
A)
A pen
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B)
Your body
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C)
Pencil
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D)
An inkpot
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E)
None of these
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A force produces an acceleration of \[1\,\,m/{{s}^{2}}\] in a body of mass 1.5 kg. If the same force acts on a body of mass 3 kg, what will be its acceleration?
A)
\[0.25\,\,m/{{s}^{2}}\]
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B)
\[0.5\,\,m/{{s}^{2}}\]
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C)
\[1.25\,\,m/{{s}^{2}}\]
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D)
\[1.5\,\,m/{{s}^{2}}\]
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E)
None of these
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In circular motion the ____.
A)
Direction of motion is fixed
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B)
Direction of motion changes continuously
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C)
Acceleration is zero
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D)
Velocity is constant
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E)
None of these
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Newton?s law of gravitation is valid
A)
On the earth only
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B)
On the moon only
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C)
In the laboratory only
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D)
Every where
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E)
None of these
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When a body is thrown up, the force of gravity is:
A)
In the upward direction
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B)
In the downward direction
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C)
Zero
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D)
In the horizontal direction
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E)
None of these
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Which one of the following is a vascular plant?
A)
Ferns
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B)
Mosses
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C)
Liverworts
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D)
Hornwort
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E)
None of these
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Which of the following does not have poison apparatus?
A)
Scorpion
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B)
Centipede
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C)
Spider
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D)
Crab
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E)
None of these
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The mode of nutrition in bacteria is:
A)
Autotrophic
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B)
Heterotrophic
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C)
Autotrophic and heterotrophic
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D)
Neither autotrophic nor heterotrophic
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E)
None of these
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A plant body which is not differentiated into stem, roots, etc, is called
A)
Thallus
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B)
Mycelium
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C)
Frond
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D)
Substratum
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E)
None of these
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Mature sclerenchyma cells are
A)
Living
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B)
Dead
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C)
Not packed closely
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D)
Thickened with cellulose
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E)
None of these
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An onion is a modified
A)
Root
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B)
Stem
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C)
Leaf
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D)
Rhizome
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E)
None of these
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