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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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  2. /Prelims Questions
Q.2953·Miscellaneous·2022·Easy

What are the direction ratios of a normal to the plane 2x + 3y + z = r, if it passes through the point (2, 3, -6)?

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Q.2954·Miscellaneous·2022·Easy

What is the probability of getting a composite number in the list of natural numbers from 1 to 50?

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Q.2955·Miscellaneous·2022·Easy

Which of the following statements is/are correct? The Earth’s crust is brittle in nature. The mean thickness of the oceanic crust is 15 km, whereas that of the continental crust is around 30 km. Select the correct answer using the code given below.

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Q.2956·Miscellaneous·2022·Easy

In January 2020, the administration of which of the following Union Territories has been merged together?

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Q.2957·Miscellaneous·2022·Easy

Two convex lenses have focal lengths of 50 cm and 25 cm, respectively. If these two lenses are placed in contact, then the net power of this combination will be equal to

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Q.2958·Miscellaneous·2022·Easy

Which one of the following terms cannot represent electrical power in a circuit?

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Q.2959·Miscellaneous·2022·Easy

The refractive index of crown glass is close to 3/2. If the speed of light in air is c, then the speed of light in the crown glass will be close to

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Q.2960·Miscellaneous·2022·Easy

If n > 7, then what is the probability that C(n, 7) is a multiple of 7?

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Q.2961·Miscellaneous·2022·Easy

A simple pendulum having bob of mass m and length of string l has time period of T . If the mass of the bob is doubled and the length of the string is halved, then the time period of this pendulum will be

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Q.2962·Miscellaneous·2022·Easy

In which one of the following devices, the light energy is converted into the electrical energy?

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Q.2963·Miscellaneous·2022·Easy

Which one of the following is not a power of Panchayats under Article 243G?

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Q.2964·Miscellaneous·2022·Easy

Match List-I with List-II and select the correct answer using the code given below the Lists : List-I (Mahamatta) A. Anta-mahamatta B. Itthijhaka-mahamatta C. Dhamma-mahamatta D. Nagalaviyohalaka-mahamatta List-II (Function) Women’s welfare Spread of Dhamma Associated with city administration In-charge of frontier areas

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Q.2965·Miscellaneous·2022·Easy

A number x is chosen at random from first n natural numbers. What is the probability that the number chosen satisfies x + 1/x > 2 ?

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Q.2966·Miscellaneous·2022·Easy

Who among the following is the author of the Hastayurveda ?

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Q.2967·Miscellaneous·2022·Easy

Which one of the following areas was acquired by the British under the Treaty of Deogaon, 1803?

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Q.2968·Miscellaneous·2022·Easy

Three fair dice are tossed once. What is the probability that they show different numbers that are in AP?

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Q.2969·Miscellaneous·2022·Easy

Consider the following statements : Maharashtra State has the maximum share of national highways (length in kilometres). The nature of terrain and the level of economic development is one of the reasons for the maximum share of national highways in Maharashtra. Which of the statements given above is/are correct?

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Q.2970·Miscellaneous·2022·Easy

The activities or services focussed on creation, rearrangement and interpretation of new and existing ideas are referred to as

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