# KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics: Questions 46 - 48 of 253

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## Question number: 46

Appeared in Year: 2012

MCQ▾

### Question

In the circuit shown, n identical resistors R are connected in parallel (n > 1) and the combination in series to another resistor R0. In the adjoining circuit n resistors of resistance R are all connected in series along with R0.

The batteries in both circuits are identical and net power dissipated in the n resistors in both circuit is same. The ratio is

### Choices

Choice (4) Response

a.

n

b.

n2

c.

d.

1

## Question number: 47

Appeared in Year: 2013

MCQ▾

### Question

An ideal gas filled in a cylinder occupies volume V. The gas is compressed isothermally to the volume. Now the cylinder valve is opened and the gas is allowed to leak keeping temperature same. What percentage of the number of molecules escapes to bring the pressure in the cylinder back to its original value?

### Choices

Choice (4) Response

a.

0.33%

b.

0.66%

c.

33%

d.

66%

## Question number: 48

Appeared in Year: 2012

MCQ▾

### Question

A solid cube and a solid sphere both made of same material are completely submerged in water but to different depths. The sphere and the cube have same surface area. The buoyant force is:

### Choices

Choice (4) Response

a.

greater for the sphere than the cube

b.

same for the sphere and the cube

c.

greater for the cube than the sphere

d.

greater for the object that is submerged deeper

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