NAVY STENO PAST PAPERS 2023 TO TILL DATE
NAVY 5
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
حرکت کی وجہ سے توانائی کو _______ کہا جاتا ہے؟
Kinetic energy
Potential energy
Chemical energy
None of these
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Explanation
Kinetic energy is the energy an object possesses due to its motion .
The faster the object moves, the more kinetic energy it has.
اسپرنگ کے مستقل کی اکائی کیا ہے؟
Nm
Nm^-2
Nm^-1
Nm^2
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Explanation
The spring constant (k) represents the force required to stretch or compress a spring by a certain distance.
The unit of spring constant is Newton per meter (N/m) or Newton per meter^-1 (Nm^-1).
rad/s
rad/s²
m/s
N·m
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Explanation
The standard unit for angular velocity is radians per second (rad/s).
Dimensional formula Angular velocity is [T]⁻¹
The SI unit of velocity is a ms^-1 and m/s.
ریفریکشن کا اشاریہ کس پر منحصر ہے
the objective distance
the speed of light
the focus object
the image distance
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Explanation
The refractive index of a medium is dependent (to some extent) upon th e frequency of light passing through, with the highest frequencie s having the highest values of n.
For example
In ordinary glass, the refractive index for violet light is about one percent greater than that for red light.
**
The Refractive Index of a medium depends upon the refractive index of the surroundings, optical density, wavelength of the light, and temperature.
اونچائی پر پانی کا ابلتا نقطہ کم ہونے کی وجہ ہے۔
Low temperature
Low atmospheric pressure
High temperature
High atmospheric pressure
All of these
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Explanation
The boiling point of water decreases at higher altitudes due to Low atmospheric pressur e
It takes less energy to raise water to the boiling point when air pressure is lower.
Because there is less energy and thus less heat at a higher altitude , water will boil at a lower temperature.
ND17-1-2023
2
4
5
7
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Explanation
Let the number be x.
Given:
x × x = 20 + 5
⇒ x² = 25
⇒ x = ±5
Answer : The number is 5 or -5.
5
6
4
6
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Explanation
Let the number be x.
Given:
x × x = 30 + 6
⇒ x² = 36
⇒ x = √36 = ±6
Answer: The number is 6 or -6
6
4
8
9
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Explanation
According to the question:
x × x = 60 + 4
⇒ x² = 64
⇒ x = √64 = ±8
Answer: The number is 8 or -8.
10
1
100
0
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Explanation
log(i) + log(j) = log(100)
Using log rule:
log(i × j) = log(100)
So,
i × j = 100
5
8
10
12
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Explanation
1 rupee = 100 paise
So, 5 rupees = 500 paise
Each pencil costs 50 paise, so:
500 ÷ 50 = 10 pencils
