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.
Statements: L < E; M = O; E >K ≥ M
Conclusions:
I. L < M
II. K = O
In the following question the relationship between different elements is given in the statements followed by three conclusions I, II and III. Read the ...
Statements: J # Q, Q * D, D % P, P $ Y
Conclusions:Â Â Â Â Â Â I. Q * YÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â II. P *YÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â III...
Statements: J < K, J < L, L > M
Conclusions: I. J < M II. L = J
...Statements: J ≤ K = L ≤ N; N ≤ O = M
Conclusions: I. M = JÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â II. J < M
...Statements: Q % R & L @ T $ D; W % Q # P
Conclusions :Â Â Â Â Â I. D % RÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â II. Q % LÂ Â Â Â Â Â Â Â Â Â Â Â Â Â I...
In the following question the relationship between different elements is given in the statements followed by three conclusions I, II and III. Read the ...
Which among the following symbols should replace the question mark [?] (in the same order from left to right) in the given expression in order to make b...
In the question, assuming the given statements to be true, find which of the following conclusion(s) among the two conclusions is/are true and then gi...
In the following question the relationship between different elements is given in the statements followed by three conclusions I, II and III. Read the ...
Relevant for Exams:
