INSIGHT UPSC QUIZ

Which of the following phenomena are caused due to ‘atmospheric refraction’?

1. Flickering of objects seen through a turbulent stream of hot air rising above a fire.

2. The reddening of the sun at sunrise and the sunset.

3. The apparent flattening of the Sun’s disc at sunrise and sunset.

4. The Sun is visible to us about 2 minutes before the actual sunrise, and about 2 minutes after the actual sunset.

Select the correct answer using the code given below.

Consider the following statements about the ‘fuel obtained from plastic waste’: 

1. It has low octane rating.

2. Lead content is absent in it.

3. It is known as green fuel.

Which of the statements given above is/are correct?

 Which among the following method(s) is/are used by pests to attack crops sown in the field?

1. They attack the root of the plant.

2. They bore into stem and fruits of the plant. 

3. They suck water from various parts of the plant.

Select the correct answer using the code given below:

The twinkling of a star occurs due to atmospheric refraction of starlight. This twinkling phenomenon occurs only in stars and not in planets, it is because of which of the following reasons?

The ‘Deepor Beel Wildlife Sanctuary’, recently seen in news, is situated in which of the following Indian states?

Fertilizers are commercially produced plant nutrients. In this context, consider the following statements:

1. Fertilizers get washed away due to excessive irrigation.

2. Micro-organisms in the soil are harmed by the continuous use of fertilizers.

3. Fertilizers supply nitrogen, phosphorus and sodium to the soil. 

Select the correct answer using the code given below:

Consider the following statements:

1. Methanol is a low carbon, hydrogen carrier fuel produced from high ash coal, CO₂ from thermal power plants and natural gas.

2. ‘Methanol Economy’ programme has been launched with the objective of reducing India's oil import bill and greenhouse gas (GHG) emissions. 

3. The Methanol Economy programme has been launched by the Ministry of Petroleum and Natural Gas. 

Which of the statements given above is/are correct?

Read the following statements carefully and select the correct answer from codes given below:

1. The phenomenon of splitting of white light into its seven component colours by a prism is called dispersion.

2. While passing through a prism, the violet light bends the least while the red the most.

3. Isaac Newton was the first to use a glass prism to obtain the spectrum of sunlight.

Which of the statements given above is/are correct?

Consider the following statements:

1. The direction of current is taken opposite to the direction of flow of electrons.

2. Resistance is a property of a conductor that generates heat in the electrical circuit.

3. The SI unit of electric current is Amperes. 

Select the correct answer using the code given below:

 In context of General Science, consider the following statements:

1. All fluids exert pressure on the base and walls of the container in which they are enclosed.

2. All objects experience a downward force of buoyancy when they are immersed in a fluid.

3. The magnitude of buoyancy force is independent of the density of the fluid in which the object is immersed.

Which of the statement(s) given above is/are correct?