Question Discussion & Solution

 CONCEPT:

• Electromagnetic waves or EM waves (Lightwave): The waves that are formed as a result of vibrations between an electric field and a magnetic field and they are perpendicular to each other and to the direction of the wave is called an electromagnetic wave.
• The accelerating charged particle produces an electromagnetic (EM) wave.
• A charged particle oscillating about an equilibrium position is an accelerating charged particle.
• Electromagnetic waves do not require any matter to propagate from one place to another as it consists of photons.
• Hence they can move in a vacuum 

Properties of Lightwaves:

• Not have any charge or we can say that they are neutral.
• Propagate as a transverse wave with both wave and particle nature.
• They move with the velocity the same as that of light i.e 3 × 108 m/s.
• It contains energy and they also contain momentum.
• They can travel in a vacuum also and always travel in a straight line.

EXPLANATION:

• All of the above-given statements are true.
• Light travels in a straight line until its path is obstructed.
• Light has dual nature, that is, it shows both waves as well as particle nature.
• Light is a transverse wave as the particles of lightwave vibrate in a direction perpendicular to the direction of propagation.

The correct answer is ALGORITHM.

Key Points

• An algorithm is a specific procedure for solving a well-defined computational problem.
• The development and analysis of algorithms are fundamental to all aspects of Computer Science like AI, databases, graphics, networking, OS, etc.
• Algorithm development is more than just programming.
  • It requires an understanding of the alternatives available for solving a computational problem.
  • It includes the hardware, networking, programming language, and performance constraints that accompany any particular solution.

Additional Information

• An official language comprising a collection of instructions that produce different kinds of output is a programming language.
• In computer science, programming languages are used to implement algorithms.
• Most of the languages of programming consist of computer instructions.

The correct answer is To adjourn the Legislative Assembly.

• Article 174, a governor shall summon the House at a time and place, as she or he thinks fit.
• Article 174 (2) (a) says a governor may from “time to time” prorogue the House.
• Article 174 (2) (b) allows her or him to dissolve the Legislative Assembly.
• The speaker of the Legislative assembly has the right to adjourn the Legislative Assembly.

Key Points

• According to Article 153, each state in the country will have a governor.
• Also, a person can be appointed as the Governor of two or more states.
• According to Article 155, the Governor is appointed by the President.
• The powers of Governor :
  • The governor has the right to call the state assembly in any emergency and dissolve it at any time.
  • He also has the right to call a joint sitting of the two houses.
  • He has the right to repeal any bill to be passed in the State Legislative Assembly, sent back for review and sent to the President.
  • This means that no bill in the state assembly can be passed without the consent of the governor.
  • The Governor also has the task of issuing any ordinance during emergencies in the state.

The correct option is 2 i.e. Sodium Carbonate

Key Points

• Sodium Carbonate is also known as washing soda it is a salt of carbonic acid.
• Sodium carbonate can be manufactured by Solvay's process.
• It is used for treating hard water and industrial detergent mixtures.
• The aqueous solution of sodium carbonate is alkaline.
• Calcium Sulphate exists in the forms of white solids and is not soluble in water.
• Plaster of Paris and Gypsum are its hydrates.

The correct answer is Udaipur.

• Sorghum research centre has been established in Vallabhnagar Udaipur in Rajasthan.

Key Points

• Sorghum/Jowar is used as food grains.
• The highest Jowar production in the country is in Maharashtra.
• Whereas Rajasthan holds the fourth position in the country.
• Rajasthan has the highest production of Jowar in the central part.
• While Ajmer district ranks fifth in Jowar production.

Additional Information

• The major variety of Jowar in the state is PV-96.
  • Maximum Producing District - Nagaur, Ajmer, Pali.
  • Climate - Warm temperature is required.
  • Rainfall - 35 -150cm
• Alcohol and Beer are made from Sorghum.