Which of the following statements are correct?
1. Cirrus clouds are always white in colour.
2. Cumulus clouds look like cotton wool.
3. Nimbus clouds are black or dark grey.
4. Stratus clouds are shapeless masses of thick vapour.
Select the correct answer using the code given below:
1, 2 and 3 only
1, 3 and 4 only
2, 3 and 4 only
1, 2, 3 and 4
According to their height, expanse, density and transparency or opaqueness the clouds are grouped under four types: (i) Cirrus; (ii) Cumulus; (iii) Stratus; and (iv) Nimbus.
(i) Cirrus clouds are formed at high altitudes (8,000 - 12,000m). They are thin and detached clouds having a feathery appearance. They are always white in colour.
(ii) Cumulus clouds look like cotton wool. They are generally formed at a height of 4,000 - 7,000 m. They exist in patches and can be seen scattered here and there. They have a flat base.
(iii) Stratus clouds are layered clouds covering large portions of the sky. These clouds are generally formed either due to loss of heat or the mixing of air masses with different temperatures.
(iv) Nimbus clouds are black or dark grey. They form at middle levels or very near to the surface of the Earth. These are extremely dense and opaque to the rays of the Sun. Sometimes, the clouds are so low, that they seem to touch the ground. Nimbus clouds are shapeless masses of thick vapour.
A spherical balloon of radius r subtends angle 60° at the eye of an observer. If the angle of elevation of its centre is 60° and h is the height of the centre of the balloon, then which one of the following is correct?
Miscellaneous · Easy
The main source of energy in Sun is :
Miscellaneous · Easy
Match the underlined word in each of the sentences with the correct parts of speech and indicate your response on the answer sheet accordingly. Oh no! I am getting late for the function.
Miscellaneous · Easy
The first and sixth sentences are given as S1 and S6. The middle four sentences in each have been jumbled up and labelled as P, Q, R and S. You are required to find the proper sequence of the four sentences and mark your response accordingly S1: Our Constitution makers were fully conscious of the fact that the Scheduled Castes and Scheduled Tribes had been oppressed and underprivileged sections of our society over the centuries and they deserved a special dispensation so that their condition may be vastly improved. P: Similarly, they were also sensitive of the difficulties and problems which were likely to be faced by the persons belonging to the Anglo-Indian community in the country. Q: One such provision related to the reservation of seats for these communities in the Lok Sabha and State Legislative Assemblies. R: This provision found place in Article 330 and Article 332 of the Constitution. S: For this purpose, several special provisions were incorporated in our Constitution. S6: Consequently, adequate safeguards were provided for these communities in our Constitution. The correct sequence should be:
Miscellaneous · Easy