MPSC Rajyaseva 2015 GS Paper 1 — Question 53
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अतिनील किरणे _________ मधून आरपार जाऊ शकत नाहीत.
(a)कांच
(b)क्वार्ट्झ
(c)फ्लूओराईट
(d)रॉक सॉल्ट (सैंधव)
1)फक्त अ✓ Correct
2)फक्त ड
3)ब, क आणि ड
4)फक्त ब आणि ड
Ordinary glass absorbs ultraviolet (UV) rays and does not allow them to pass through. Quartz, fluorite, and rock salt are transparent to UV rays.
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अवरक्त प्रकाश किरणांची वारंवारिता ही जांभळ्या रंगाच्या प्रकाश किरणे पेक्षा ____________.
Frequency of infrared light is ____________ than violet light.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.
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