The illumination of a bulb varies inversely as the square of the distance . If the illumination is 6 lux at a distance of 5 meters whet is illumination at a distance of 3 meters?

A 24
B 12
C 6
D 48

Correct Answer: 12

Bissoy MCQ
#উচ্চতর গণিত #বিপরীত ত্রিকোণমিতিক ফাংশন ও ত্রিকোণমিতিক সমীকরণ (Inverse Trigonometric Functions and Trigonometric Equations) #E ইউনিট #জাহাঙ্গীরনগর বিশ্ববিদ্যালয়

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