The discovery of X-rays was made by: MCQ with Answer and Explanation

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The discovery of X-rays was made by:

A. Enrico Fermi

B. Marie Curie

C. James Chadwick

D. Wilhelm Roentgen

Answer: Option D

Solution (By JKSSB Mock Tests)

Roentgen discovered X-rays in 1895.

This question belongs to: Static General Knowledge Science and Technology

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Question #1

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Which of the following is a biotechnology company of India?

A. HAL

B. Bharat Biotech

C. DRDO

D. ISRO

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Correct Answer: Option B

Explanation:
Bharat Biotech developed Covaxin.

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Question #2

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Which blood group is called the universal recipient?

A. A-

B. O+

C. B+

D. AB+

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Correct Answer: Option D

Explanation:
Individuals with AB+ blood can receive blood from any group.

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Question #3

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India's first earth observation satellite was:

A. Cartosat-1

B. RISAT-1

C. IRS-1A

D. Bhaskara

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Correct Answer: Option C

Explanation:
IRS-1A was launched in 1988.

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