INSIGHT UPSC QUIZ

If an opaque object on the path of light becomes very small, light has a tendency to bend around it and not walk in a straight line. This effect is known as:

Read the following statements carefully: 

1. Motion of the moon around the earth.

2. Tides in open seas.

3. Rotation of earth.

4. Motion of planets around the Sun.

Which of the events given above are result of force of ‘Gravitation’?

The immune system is a complex network of cells known as immune cells that contains lymphocytes. In this context, consider the following statements: 

1. Lymphocytes are red blood cells and one of the body's main types of immune cells. 

2. Lymphocytes are made in the bone marrow and found in the blood and lymph tissue. 

Which of the statements given above is/are correct?

With reference to ‘blood’ present in the human body, consider the following statements:

1. It carries oxygen and food to all the cells in human body. 

2. It collects wastes from the cells for disposal. 

3. It is a type of connective tissue. 

Which of the statements given above is/are correct?

With reference to the uses of ‘concave mirrors’, read the following statements carefully:

1. They are commonly used in vehicles headlights to get powerful parallel beams of light. 

2. They are often used as shaving mirrors to see a larger image of the face. 

3. They are fitted on the sides of the vehicle to have a wider field of view.

4. Large concave mirrors are used to concentrate sunlight to produce heat in solar furnaces.

Which of the statements given above is/are correct?

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

1. Saturated hydrocarbons are linked by only single bonds between the carbon atoms while unsaturated carbon compounds have double or triple bonds. 

2. Saturated hydrocarbons generally give a clean flame while unsaturated carbon compounds give a yellow flame with lots of black smoke.

Select the correct answer using the code given below.

In context of cells in the human body, consider the following statements:

1. The shape and size of cells are related to the specific function they perform.

2. A cell is able to live and perform all its functions because of its components known as organelles.

3. All cells present in human body have the same organelles.

Select the correct answer using the code given below:

Vectors are living organisms that can transmit infectious pathogens between humans, or from animals to humans. The commonest vectors we all know are mosquitoes. Which among the following vector borne diseases are caused by mosquitoes?

1. Yellow Fever

2. Lymphatic Filariasis

3. Zika Fever

4. Japanese Encephalitis

Select the correct answer using the code given below:

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:

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: