Explanation

• Subtract the second number from the first number.
• Add the first and second numbers.
• Combine the two results to form a new number. 

Explanation

There are 114 Surahs in the Qur'an.

The number of verses in the Quran is 6,666.

the total number of verses in Quraan is 6,236 excluding Bismillah and 6349 including Bismillah.

There is Juz 30 in the Qur'an.

There are  Mnazil 7 in the Qur'an.

There are  14 Sajda talawat in the Qur'an.

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ND27-7-2023

Explanation

To find the answer, we need to calculate the percentage step by step:

• 20% of 30% = (20/100) × (30/100) = 6/100 = 6%
• 10% of 6% = (10/100) × (6/100) = 0.6/100 = 0.6%

So, the correct answer is: 0.6%

Explanation

Lightning occurs when opposite electrical charges in clouds (or between clouds and earth) discharge.

This sudden discharge produces the flash of light we see as lightning.

Explanation

On cloudy nights, clouds act like a blanket, trapping heat radiated from the earth.

This prevents the ground temperature from falling low enough to form frost.

Explanation

The instrument used for the precise measurement of refractive indices is a spectrometer.

A specific experiment using a spectrometer and a prism allows for the calculation of a material's refractive index.

Explanation

Lower pressure means water molecules need less energy to escape as vapor.

This causes water to boil at a temperature below 100°C.

Explanation

Explanation

A galvanometer is a highly sensitive instrument used to detect and measure very small electric currents, often in the microampere range.

It can also detect the direction of the current based on the needle's deflection.

Explanation

They are used to control the rate of fission in a nuclear reactor.

They work by absorbing neutrons, which are the particles that trigger the fission of uranium or plutonium atoms.

Control rods are typically made of neutron-absorbing materials like boron, cadmium, or hafnium.