If we put COVID-19 (CO-VI-D-19) according to alphabets as 3 15-22-4-19.
Construct 4×4 magic square by using 315,229,4,19.
Answers
Step-by-step explanation:
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\bf\Huge\red{\mid{\overline{\underline{ ANSWER }}}\mid }∣
ANSWER
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\Large\fbox{\color{purple}{CORRECT \: QUESTION}}
CORRECTQUESTION
DEFINE THE FOLLOWING TERMS IN RELATION TO SPHERICAL MIRRORS
PRINCIPAL AXIS
FOCAL LENGTH
PRINCIPAL FOCUS
CENTER OF CURVATURE
RADIUS OF CURVATURE
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\Large\fbox{\color{purple}{ SOLUTION }}
SOLUTION
★ PRINCIPAL AXIS ★
THE STRAIGHT LINE THAT GOES TO THE CENTRE OF THE SPHERICAL MIRROR AT RIGHT ANGLE TO THE MIRROR IS CALLED PRINCIPAL AXIS
★ FOCAL LENGTH ★
IT IS THE DISTANCE ON PRINCIPAL AXIS FROM PRINCIPAL FOCUS TO THE POLES OF SPHERICAL MIRROR
★ PRINCIPAL FOCUS ★
IT IS A POINT ON PRINCIPAL AXIS WHERE ALL REFLECTED RAYS ARE EITHER CONVERGE OR DIVERGE
★ CENTER OF CURVATURE ★
IT IS THE CENTRE OF THE SPHERE WHICH MIRROR IS A PART
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★ RADIUS OF CURVATURE ★
IT IS A DISTANCE ON PRINCIPAL AXIS FROM CENTRE OF CURVATURE TO THE POLES OF SPHERICAL MIRROR
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\bf\Large\red{ THANKS \: FOR \: YOUR}THANKSFORYOUR
\bf\Large\red{ QUESTION \: HOPE \: IT }QUESTIONHOPEIT
\bf\Large\red{ HELPS }HELPS
\Large\mathcal\green{FOLLOW \: ME}FOLLOWME
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