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The errors are in (B) & (C). In part (B), the use of verb 'troubled' is incorrect; the adjective 'real' indicates that a noun should be used instead. In part (C), the use of 'which' is incorrect; 'which' is used in case of non-essential clauses. The clause after 'which' is an essential clause, thus, 'that' should be used here instead. Hence, option (c) is the correct answer.
The energy emitted by the Sun is primarily due to what process?
Which of the following statement is true for a wavelength of 1000 nm. A p-n photodiode is fabricated from a semiconductor with band gap of 1.9 eV.
Two capacitors of 6 µF and 3 µF are connected in series and a potential difference of 90 V is applied. The energy stored in the system is:
The amount of light entering in eye is controlled by:
Which gate gives a high output only when both inputs are low?
What is the process of melting also called?
Tear gas used by the police to disperse the mob contains –
The speed of sound in the following media are Va, Vb and Vc for air, water and steel. Arrange the speed of sound.
When a cannonball is fired, its motion is an example of which type of motion?
Which of the following is not a recognized type of inertia?