In each of the questions given below, four sentences have been given. Out of four sentences, one sentence has an error. Find out which of the following sentence has an error. If all the given sentences are error-free then choose option ‘ All are correct’ as your answer choice.

The correct answer choice containing an error is: Current assets are cash and others that are expected to be convert to cash.

Detailed Explanation:

In English grammar, the construction "expected to be" must be followed by a past participle verb form (V3) when forming the passive voice infinitive structure: "to be + past participle".

• Incorrect segment: "...expected to be convert to cash."
• Correction: The verb "convert" should be replaced with its past participle form "converted".
• Corrected sentence: "Current assets are cash and others that are expected to be converted to cash."

Analysis of other options:
• "Researchers can measure the intensity of sunlight using a sunshine recorder" — This sentence is grammatically correct.
• "Pure water is usually described as tasteless, colorless and odorless." — This sentence is grammatically correct.
• "The popular understanding of secularism in India has undergone a sea change." — This sentence is grammatically correct.