Question

what is aperture , centre of curvature and radius of curvature

Answer 1

1) Aperture => It is the adjust line joining the extreme ends of spherical mirror cross the reflection takes place .

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2) Centre of curvature => It is a centre of the sphere of which mirror is a part it is denoted by the letter C .

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3) Radius of Curvature => Radius of curvature of spherical mirror is the radius of the sphere of which the mirror is a part . Alternatively , It is defined as the distance between the centre of curvature and the pole of the mirror . It is denoted by letter R .

Answer 2

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$\bf\Huge\red{\mid{\overline{\underline{ ANSWER }}}\mid }$

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$\Large\fbox{\color{purple}{CORRECT \: QUESTION}}$

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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$\Large\fbox{\color{purple}{ SOLUTION }}$

★ 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

★ RADIUS OF CURVATURE ★

IT IS A DISTANCE ON PRINCIPAL AXIS FROM CENTRE OF CURVATURE TO THE POLES OF SPHERICAL MIRROR

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