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A Point source is at a distance of 35 cm on the optical axis from a spherical concave mirror having a focal length 25 cm. At what distance measured along the optical axis from the concave mirror should a plane mirror (perpendicular to principal axis) be placed for the image it forms (due to rays falling on it after reflection from the concave mirror) to coincide with the point source?
Ref: https://edurev.in/question/534324/A-Point-source-is-at-a-distance-of-35-cm-on-the-optical-axis-from-a-spherical-concave-mirror-having-

Answer is 61.25 cm - JEE

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FAQs on Answer is 61.25 cm - JEE

1. What is the formula to convert centimeters to inches?
Ans. The formula to convert centimeters to inches is: inches = centimeters / 2.54. Therefore, to convert centimeters to inches, divide the value in centimeters by 2.54.
2. How do I convert inches to centimeters?
Ans. To convert inches to centimeters, you can use the formula: centimeters = inches * 2.54. Multiply the value in inches by 2.54 to get the equivalent length in centimeters.
3. Can you provide an example of converting centimeters to inches?
Ans. Sure! Let's convert 100 centimeters to inches using the formula. inches = centimeters / 2.54. Plugging in the values, we get inches = 100 / 2.54 = 39.37 inches.
4. Is there a way to convert inches to millimeters?
Ans. Yes, there is a way to convert inches to millimeters. Since 1 inch is equal to 25.4 millimeters, you can simply multiply the length in inches by 25.4 to get the equivalent length in millimeters.
5. How do I convert millimeters to centimeters?
Ans. To convert millimeters to centimeters, you can divide the length in millimeters by 10. For example, if you have 50 millimeters, dividing it by 10 will give you 5 centimeters.
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