Distance between object and its image (magnified by -\frac{1}{3} ) is 30 cm . The focal length of the mirror used is (\frac{x}{4}) {\cm}, where magnitude of value of x is \_\_\_\_ [4 Apr 2025 Shift 1]

Ray Optics and Optical Instruments Part 3

Section: Physics

Question : 30 of 56

Marks: +1, -0

Distance between object and its image (magnified by −‌

) is 30 cm . The focal length of the mirror used is (‌

)‌cm, where magnitude of value of x is ____

[4 Apr 2025 Shift 1]

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