1. निम्नलिखित में कौन-सा कथन सत्य है? (A) पानी की अपेक्षा वायु प्रकाशतः सघन माध्यम है।(B) पानी की अपेक्षा काँच प्रकाशत: विरल माध्यम है।(C) काँच की अपेक्षा वायु प्रकाशतः सघन माध्यम है(D) काँच की अपेक्षा पानी प्रकाशतः विरल माध्यम है।।

1. निम्नलिखित में कौन-सा कथन

1.	1. निम्नलिखित में कौन-सा कथन सत्य है? (A) पानी की अपेक्षा वायु प्रकाशतः सघन माध्यम है।(B) पानी की अपेक्षा काँच प्रकाशत: विरल माध्यम है।(C) काँच की अपेक्षा वायु प्रकाशतः सघन माध्यम है(D) काँच की अपेक्षा पानी प्रकाशतः विरल माध्यम है।।
Answer» KANCH KI apekhcha vaayhu Parkhasttee saghan madyam H

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