Question
What is the speed of sound in air at room temperature
(approx)? ÂSolution
At room temperature (~20°C), speed of sound in air is around 343 m/s.  This speed increases in solids and liquids and decreases at higher altitudes.  It is much slower than light, which travels at 3 × 108, m/s.  That's why we see lightning before hearing thunder.
Directions: In each question below, word is used in four different ways. Choose the option in which the usage of the word is INCORRECT or INAPPROPRIATE....
Select the most appropriate synonym of the given word.
FOUNDATIONÂ
Select the word which means the same as the group of words given.
Branch of physics dealing with the properties of sound
Select the most appropriate synonym of the given word.
IMITATION
The two parties will soon appoint a person to settle the disputes between them .
Select the option that can be used as a one-word substitute for the given group of words.
One who studies the occult meanings of numbers and thei...
In the following question, a word is given in bold. Three jumbled sentences are provided below this word. You have to unjumble these sentences and det...
In each of the following questions, a word has been given and used in three statements. You are supposed to identify which of the statement/s use/s the ...
Given below is a word followed by three sentences. You need to understand whether the sentences used the highlighted word correctly or not. Mark the in...
In the following question, four words have been given out of which one word is incorrectly spelt. Select the incorrectly spelt word.
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