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20/04/2024

Largest fort of Pakistan is?

17/04/2024


2) Most abundant elements in Earth crust?
Oxygen 46%
Silicon 28%
Aluminum 8.23%
(OSA)

3) Most abundant metal in Earth crust?
Aluminum
Iron
Calcium
(AIC)

4) Most abundant element in atmosphere?
Nitrogen 78%
Oxygen 21%
Argon 1%
CO2 0.0039%
(NOAC)

17/04/2024

What is Ivy Mike ?
A. First test of hydrogen bomb of United States
B. First test of hydrogen bomb of United Kingdom
C. First test of hydrogen bomb of Soviet Union
D. First test of hydrogen bomb of France

17/04/2024

Short-sightedness, or myopia, can be corrected by using

🅐. Convex lens
🅑. Concave lens
🅒. Cylinderical lens
🅓. None of these

17/04/2024

Who formulated the law of refraction in 1621?

🅐. Christiaan Huygens
🅑. Willebrord Snell
🅒. Albert Einstein
🅓. Thomas Young

17/04/2024

The chemical name of Vinegar is _______.

A. Sodium nitrate
B. Dilute acetic acid
C. Chloride of lime
D. Calcium

17/04/2024

Fog is an example of _________?

A. Gas in gas
B. Gas in liquid
C. Liquid in Gas
D. Liquid in liquid

17/04/2024

The Scientist who said that “Heat is a form of Energy” was ________?

A. Thomas Edison
B. Issac Newton
C. Joule
D. Johannes Kepler

17/04/2024

Laser was invented by ______?

A. W. K. Roentgen
B. Godfrey Hounsfield
C. Theodore Maiman
D. Alessandro Volta

17/04/2024

How long does it take for the moon to orbit the earth once?

A. 26.3 days
B. 27.3 days
C. 28.3 days
D. 30.3 days

17/04/2024

Photosynthesis takes place faster in?

A. yellow light
B. white light
C. red light
D. darkness

17/04/2024

Important Units

Light year is the unit of___ Distance.

The unit of pressure is____ Pascal.

The unit of the temperature is____ Kelvin.

The unit of the lens is____ Diopter.

Cusec is unit of _____ Water flow.

The SI unit charge is____ Coloumb.

The SI unit of current is____ Amper.

Parsec is a unit of ____ Distance.

The unit of the frequency is____ Hertz.

The unit of force is ____ Newton.

The unit Of the power is _____ Watt.

The unit of the electric resistance is _____ Ohm.

Kilo watt hour is the unit of ____ Energy.

The unit of the magnetic field strenght ___ Tesla.

The unit of the electric conductance is ____ Siemens.

The unit of conductance is ____ Farad.

The unit of solid angel is ____ Steradian.

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