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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
radiation
convection
conduction
none
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Explanation
In gases, heat transfers mainly by convection .
Convection is the process of heat transfer by the actual movement of medium particles .
To some extent, gases also transfer heat by conduction when they are in static conditions.
دباؤ کس قانون میں مستقل ہے؟
Newton's Law
Charles Law
Pascal Law
None
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Explanation
Charles' law states that, for a given mass of an ideal gas at constant pressure, the volume is directly proportional to its absolute temperature , assuming in a closed system.
The pascal is the SI derived unit of pressure
force
magnetic flux
unit
none
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Explanation
The tesla is the unit of magnetic flux density (also called magnetic B-field strength)
One tesla is equal to one Weber per square meter.
tesla
Unit system: SI
Symbol : T
Named after: Nikola Tesla
مندرجہ ذیل میں سے کس میں سب سے زیادہ مخصوص حرارت ہے؟
mercury
water
copper
none
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Explanation
water has the highest specific heat capacity.
The specific heat of water is 4.186kjoule/gram°C
The specific heat of copper is 0.385kjoule/gram°C
The specific heat of Mercury is 0.140kjoule/gram°C
Hence only water has the highest specific heat capacity
including
counting
exclusive
none
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Explanation
Inclusive مشتمل
exclusive مخصوص
20
13
14
15
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Explanation
In Excel, the default row height is 15 (20 pixels) ,
and the column width is 8.43 (64 pixels) .
جڑت کا انحصار کن دو عوامل پر ہے۔
Density and mass
Height and Weight
Length and Width
Speed and Velocity
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Explanation
Inertia depends on density and mass.
Inertia is directly proportional to the mass and density of an object.
The more the mass of an object, the more the inertia of the body.
سب سے زیادہ توانائی بخش شعاعیں ہیں؟
microwaves
ultraviolet waves
X-rays
gamma rays
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Explanation
Gamma rays have the smallest wavelengths and the most energy of any wave in the electromagnetic spectrum.
They have a frequency higher than 2.42 × 1028 Hz
New slides
Close window
Reload page
None
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Explanation
Ctrl F5: Forced Reload a Webpage in Google Chrome or other Web Browsers.
NOTE:
F5 reloads the page from the server but uses the browser's cache for page elements like scripts, images, CSS stylesheets , etc
But Ctrl+F5 reload s the page from the server and also reloads its contents from the server and doesn't use the local cache at all.
to reaching
to reached
to reach
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Explanation
I tried to reach the shelf but I was not tall enough.
میں نے شیلف تک پہنچنے کی کوشش کی لیکن میں اتنا لمبا نہیں تھا۔
Verb + -ing or to...2 ( try/ need / help )