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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
- High M. P
- High B.P
- Stable coefficient of expansion
- All of these
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Explanation
Mercury is used as a thermometric fluid
Because it has several ideal properties like:
- High Boiling Point (B.P)
- Low Freezing Point (not high M.P)
- Stable and Uniform Coefficient of Expansion
- Visibility and Non-wettability
Last updated on 06-March-2026
- From
- With
- Of
- On
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Explanation
We use "of" in the sentence "Mother was aware of her children" because:
The word "aware" is usually followed by "of" to show what someone knows or notices.
مرکری تھرمامیٹر میں استعمال ہوتا ہے کیونکہ ______؟
- It remains liquid at ordinary temperatures
- It has uniform expansion (expand uniformly)
- It is opaque and visible
- It does not stick to glass
- All of the above
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Explanation
Mercury remains liquid at a wide range of temperatures, has uniform expansion.
It is easily visible due to its opacity.
It does not stick to glass, allowing accurate and consistent readings in thermometers.
طاقت کا ایس آئی یونٹ ______ ہے؟
- Force
- Charge
- Current
- Watt
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Explanation
The SI unit of power is the watt (W).
Explanation: A watt is equal to one joule of work done per second.
Key points:
Symbol: W
Definition: 1 watt = 1 joule per second
Named after: James Watt
- From
- Off
- With
- Of
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Explanation
Full of something means کسی چیز سے بھرا ہوا
We use "full of" to describe something that is filled with something else.
"The jar was full of oil"
full of + noun = containing that thing to capacity.
- rad/s²
- rad/s
- m/s²
- N·m
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Explanation
The unit of angular acceleration is radians per second squared (rad/s²).
This unit measures the rate at which an object's angular velocity (its rate of rotation) changes over time.
Radians (rad): Represents an angle.
Seconds (s): Represents time.
کون سا باقیوں سے مختلف ہے؟
- Red
- Blue
- Square
- Green
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Explanation
The word "Square" is different because it is a geometric shape,
While "Red", "Blue", and "Green" are colors.
- 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.
- DW
- DX
- EY
- None of these
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Explanation
The pattern in the series is:
A (1st letter) + Z (26th letter)
B (2nd letter) + Y (25th letter)
C (3rd letter) + X (24th letter)
Continuing the pattern:
D (4th letter) + W (23rd letter)
The correct answer is: DW
- P
- R
- Q
- C
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Explanation
By Ohm’s Law,
V=I×R,
In the direct relationship between voltage (V) and current (I) described by Ohm's Law (V = IR),
The proportional constant is resistance (R).
This constant represents the opposition to the flow of current
And remains fixed under constant physical conditions, such as temperature.
