INSIGHT UPSC QUIZ

 Consider the following statements:

1. Anti-viral medicines are harder to make as viruses have biochemical mechanisms of their own. 

2. Anti-bacterial medicines target both bacteria and fungi.

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

 Consider the following statements:

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

1. Working of electric motors involves the electric effect of electric current.

2. Working of electric generators involves the magnetic effect of moving magnets. 

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

With reference to organic farming practices prevalent in India, consider the following statements:

 Consider the following statements with reference to the ‘magnetic field’ of a bar magnet:

1. Magnetic field is a quantity that has both direction and magnitude. 

2. Inside the magnet, the direction of field lines is from its south pole to north pole.

3. Magnetic field-lines of two different magnets can intersect each other.

Which of the statement(s) 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?

The presence of certain minerals is essential in water, however, if found in excess they can be harmful to our body. In this context, which of the following statements are correct?

1. Deficiency of fluoride in drinking water causes diseases such as tooth decay.

2. Excessive sulphate in drinking water causes laxative effect.

3. Excess lead in drinking water can cause disease such as ‘blue baby’ syndrome.

Select the correct answer using the code given below.

The ‘scattering of light’ is responsible for which of the following phenomena in nature?

1. Tyndall effect.

2. Colour of water in deep sea.

3. Blue colour of the sky.

4. Rainbow formation.

Select the correct answer using the code given below.

Consider the following statements: 

1. A person with myopia can see nearby objects clearly but cannot see distant objects distinctly.

2. In a myopic eye, the image of a distant object is formed behind the retina and not at the retina itself.

3. The defect of myopia can be corrected by using a concave lens of suitable power.

Which of the statements given above is/are correct?

A lemon kept in water in a glass tumbler appears to be bigger than its actual size, when viewed from the sides. This is because of which of the following reasons: