Question
In each question, five alternatives are given for the
Idiom/Phrase given in bold in the sentence. Choose the alternative which best expresses the meaning of the Idiom/Phrase. He kept his cards close to his chest during the negotiations.Solution
The idiom "keep one’s cards close to one’s chest" means to be secretive or not reveal one's thoughts or plans openly, especially in strategic situations like negotiations.
A particle moves along the x-axis such that its velocity varies with position as
v(x) = k√(a2 – x2)
where k...
A device used for converting A.C. into D.C. is called –
When a liquid is heated in a container, which of the following processes primarily causes the heat transfer within the liquid? Â
Find the power if a force of 100 N displaces an object by 10 m in 5 seconds.
For CE-transistor amplifier, the audio signal voltage across the collected resistance of 3 k Ω is 3V. Assume the current amplification factor of the t...
In order to investigate the internal atomic structure of crystals, we make use of:
What is the principle behind the working of a transformer? Â
For a cell terminal potential difference is 3.5 V when circuit is open and reduces to 2.5 V when cell is connected to a resistance of R = 10Ω then...
Which of the following phenomena cannot be explained by the wave theory of light?
Which law states that "the rate of heat loss of a body is directly proportional to the temperature difference between the body and its surroundings"?
