Which of the following are the properties of the image formed by a plane mirror?
1. The image is always real and erect.
2. The size of the image is equal to that of the object.
3. The image formed is as far behind the mirror as the object is in front of it.
4. The image is laterally inverted.
Select the correct answer using the code given below.
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When light enter the human eye, it passes through the different parts of the eye. In this context arrange the following in the correct sequence:
Consider the following statements about the ‘properties of ethanol’:
1. Ethanol is insoluble in water.
2. Consumption of small quantities of dilute ethanol causes drunkenness.
3. Ethanol can be blended with diesel.
4. Ethanol is used as a solvent in many medicines.
Which of the statements given above 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. 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?
Read the following statements carefully in the context of ‘particulate pollutants’?
1. Smoke particulates consist of gaseous or mixture of gaseous and liquid particles formed during combustion of organic matter.
2. Dust is composed of fine solid particles produced during crushing, grinding and attribution of solid materials.
3. Mists are produced by particles of spray liquids and by condensation of vapours in air.
4. Fumes are generally obtained by the condensation of vapours during sublimation, and boiling.
Which of the statements given above are correct?
Compass is an important tool used for navigation since old days. In this context, consider the following statements:
1. The compass needle is a magnet which align itself in a particular direction.
2. The compass needle always points towards the magnetic south pole of the earth.
Which of the statement(s) given above is/are correct?
Consider the following statements:
1.
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.
In the Animal Kingdom, which of the following groups of organisms shows the highest level of cellular organisation?
1. Annelids
2. Sponges
3. Coelenterates
Choose the correct answer by using the codes 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?