Shubham Jha - Class 9
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Forwarded from Shubham Jha - Class 10 (Shubham Jha)
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The gravitational force between two objects is F. If masses of both objects are halved without changing the distance between them, then the gravitational force would become
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36%
F/2
33%
F/4
23%
F
8%
2f
Two particles are placed at some distance. If the mass of each of the two particles is doubled, keeping the distance between them unchanged, the value of gravitational force between them will be
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24%
1/4
37%
1/2
18%
4
21%
Unchanged
The atmosphere is held to the Earth by
Anonymous Quiz
71%
Gravity
18%
Wind
9%
Cloud
2%
None
An object weighs 10 N in air. When immersed fully in water, it weighs only 8 N. The weight of the liquid displaced by the object will be
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49%
2N
25%
8N
21%
10N
5%
12N
SI unit of pressure is
Anonymous Quiz
21%
Nm
35%
N/m
40%
N/M^2
5%
N^2/M
Which of the following elements does not exhibit the electrovalencey?
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22%
Chlorine
47%
Helium
15%
Sodium
16%
Carbon
When the liquid is spun rapidly, the denser particles are forced to the bottom and the lighter particles stay at the top. This principle is used in:
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29%
Centrifugation
41%
Fractional distillation
24%
Filteration
5%
None
How one can separate ammonium chloride from a mixture containing ammonium chloride and sodium chloride?
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27%
Filteration
35%
Perciption
34%
Sublimation
4%
None
The proteins and lipids, essential for building the cell membrane, are manufactured by:
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40%
Endoplasmic recticulum
24%
Golgi apperatus
27%
Mitochondria
8%
Lysosome
Which of the following can sometimes be ‘zero’ for a moving body?
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13%
Distance
14%
Speed
28%
Velocity
46%
Displacement
Which of the following contains maximum number of molecules?
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40%
1g of c12
33%
1g of o2
19%
1g of h2
8%
None
The molecular formula of potassium nitrate is
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20%
Kno2
15%
No2
58%
Kno3
8%
Kno4