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Prelims

UPSC Prelims Questions

Practice UPSC Prelims MCQs by subject and year. Free questions with explanations for focused revision.

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Q.5149·Miscellaneous·2020·Easy

In August 2020, who among the following was administered the oath as the Prime Minister of Sri Lanka for the fourth time ?

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Q.5150·Miscellaneous·2020·Easy

Silver articles turn black when kept in the open for longer time due to the formation of

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Q.5151·Miscellaneous·2020·Easy

Which one of the following combinations of source and screen would produce sharpest shadow of an opaque object ?

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Q.5152·Miscellaneous·2020·Easy

Which one of the following phenomena verifies the fact that light travels much faster than sound ?

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Q.5153·Miscellaneous·2020·Easy

Antibiotic such as penicillin blocks

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Q.5154·Miscellaneous·2020·Easy

When a light ray enters into glass medium from water at an angle of incidence 0°, what would be the angle of refraction ?

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Q.5155·Miscellaneous·2020·Easy

Who among the following has won the Singles Title in Wimbledon Tennis Championship (Women) in the year 2019 ?

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Q.5156·Miscellaneous·2020·Easy

Recently islands of Andaman and Nicobar were connected with mainland by Submarine Optical Fibre Cable. Which one of the following islands was not connected initially ?

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Q.5157·Miscellaneous·2020·Easy

In human beings, the chromosomes that determine birth of a normal female child are

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Q.5158·Miscellaneous·2020·Easy

Mature sclerenchyma cells have

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Q.5159·Miscellaneous·2020·Easy

Which one of the following Indian Ocean island nations has recently declared a state of environmental emergency due to oil spill from a grounded ship ?

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Q.5160·Miscellaneous·2020·Easy

Who among the following is the architect of the Ram Temple being constructed at Ayodhya ?

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Q.5161·Miscellaneous·2020·Easy

Pearls are harvested from

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Q.5162·Miscellaneous·2020·Easy

Wings of birds and bats are considered analogous structures because they have

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Q.5163·Miscellaneous·2020·Easy

Which one of the following lakes in India has a large quantity of a substance found in the Moon ?

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Q.5164·Miscellaneous·2020·Easy

Which of the following terms were added to the Preamble of the Constitution of India by the Constitutional Amendment, 1976 ? 1.Socialist 2.Secular 3.Integrity 4.Fraternity Select the correct answer using the code given below:

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Q.5165·Miscellaneous·2020·Easy

Who among the following was the advisor to the Constituent Assembly ?

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Q.5166·Miscellaneous·2020·Easy

If the distance between two objects is increased by two times, the gravitational force between them will

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