Question Discussion & Solution

The correct answer is Dhaka.

Key Points

• All India Muslim League was established On 30 December 1906, a conference took place under the control of Nawab Salim Ulla Khan of Dhaka.
• The constitution of this league was made in 1907 in Karachi Pakistan.
• Its first session was held in 1907 in Karachi.
• The first session of the All India Muslim League was presided over by Aga Kha.
• Muslim League supported the partition of Bengal.

Important Points

• The partition of Bengal in 1905 was introduced by Lord Curzon.
• He issued the order of partition of Bengal in July 1905 and the partition took effect from October 1905.
• The Eastern part of Bengal has the majority of the Muslim population and the western part of Bengal has the majority of the Hindu population while the central region is comprised of both religions.
• The partition of Bengal was made in order to carry out effective administration and to discourage Hindu and Muslim unity.
• River Bhagirathi served as a physical partitioner between East Bengal and West Bengal.

The correct answer is Indicator.

Key Points

• Indicators are substances that show a change in colour when brought in contact with acids and bases.
• The most common indicator used in the laboratory is Litmus.
• Litmus is extracted from lichens.

Additional Information

• A promoter is a sequence of DNA needed to turn a gene on or off.
• A neutralizer is a substance used in the neutralization of acidic water.
• Neutralization is a chemical reaction in which acid and a base react quantitatively with each other to form water and salt.
• A catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the reaction.

In the mixed series, the letter added 2 and number added 12 we get-

 Hence, "76" is the correct answer.

The correct answer is 8 minutes.

• It takes 8 minutes to reach the earth.

Key Points

• Light is a form of energy which is propagated as electromagnetic waves.
• In the spectrum of electromagnetic waves, it lies between the ultra-violet and infra-red region and has a wavelength between 3900 Å to 7800 Å.
• light behaves as wave and particle both. 
• Speed of light is maximum in vacuum and air (3×10⁸ m/s).
• It is a transverse wave.
• It takes 8 min 19 s to reach on the earth from the sun.
• The light reflected from the moon takes 1.28 s  to reach earth.

Additional Information

• Electromagnetic waves are transverse, hence light is a transverse wave.
• Wave nature of light explains rectilinear propagation, reflection, refraction, interference, diffraction and polarization of light. 
• Refractive Index of a medium is defined as the ratio of the speed of light in a vacuum to the speed of light in the medium. 
• Light is measured with two main alternative sets of units: radiometry consists of measurements of light power at all wavelengths, while photometry measures light with a wavelength.

Fullest is an antonym of emptiest similarly, antonym of clearest is gloomiest (means dark or poorly lit).