MPSC PYQ

X-rays

X-rays is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2016, 2024). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.

Real questions
2
Years tested
2 · 2016–2024
In context
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Real questions that test this

खालीलपैकी कोणती तरंगलांबी पदार्थाच्या स्फटिक आंतररचना अभ्यासण्यासाठी वापरतात ? (1) अतिनील तरंगलांबी (2) गॅमा तरंगलांबी (3) क्ष-किरण तरंगलांबी (4) अवरक्त तरंगलांबी Which of the following wavelengths are used to study the crystal structure of material ? (1) Ultraviolet wavelength (2) Gamma Rays wavelength (3) X-Rays wavelength (4) Infrared wavelength

1)अतिनील तरंगलांबी / Ultraviolet wavelength
2)गॅमा तरंगलांबी / Gamma Rays wavelength
3)क्ष-किरण तरंगलांबी / X-Rays wavelength✓ Correct
4)अवरक्त तरंगलांबी / Infrared wavelength

X-rays have wavelengths comparable to the interatomic spacing in crystals (about 1 angstrom), making them ideal for studying crystal structures via diffraction.

पुढील दोन विधानांपैकी कोणते योग्य आहे ? अ. अतिनील किरणे किरकोळ गाठींवर उपयुक्त ठरतात. ब. अवरक्त किरणे रासायनिक द्रव्यांचे पृथक्करण करतात. Which one of the following two statements is correct ? a. Ultraviolet rays help in diagnosis of small tumours. b. Infrared rays help in analysis of chemical compounds.

(a)अतिनील किरणे किरकोळ गाठींवर उपयुक्त ठरतात. / Ultraviolet rays help in diagnosis of small tumours.

(b)अवरक्त किरणे रासायनिक द्रव्यांचे पृथक्करण करतात. / Infrared rays help in analysis of chemical compounds.

1)फक्त अ / Only a
2)फक्त ब / Only b
3)दोनों अ आणि ब / Both a and b
4)दोन्ही नाहीत / Neither a nor b✓ Correct

Ultraviolet rays are not used for diagnosing small tumours (X-rays, gamma rays or MRI are used), and infrared rays are used for studying molecular structure and thermal imaging rather than general chemical compound separation.

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