পৃথিবীর অভ্যন্তরের চিহ্ন�

1.	পৃথিবীর অভ্যন্তরের চিহ্নিত চিত্র অঙ্কন করাে
Answer» Answer: APPO opposite AH nadakkuradha yosichu yarukkum anuppava irundha? Explanation: An ice stick was PLACED in front of the CONCAVE mirror having a height of 20cm. It starts melting with change in time. A student came after 5 minutes and found that the height decreased by 20%, after sometime another student came and found that the height decreased by another 25%. The focal length and object distances are 15cm and 10cm respectively. Calculate the image height

পৃথিবীর অভ্যন্তরের চিহ্নিত চিত্র অঙ্কন করাে

Answer»

Answer:

APPO opposite AH nadakkuradha yosichu yarukkum anuppava irundha?

Explanation:

An ice stick was PLACED in front of the CONCAVE mirror having a height of 20cm. It starts

melting with change in time. A student came after 5 minutes and found that the height

decreased by 20%, after sometime another student came and found that the height decreased

by another 25%. The focal length and object distances are 15cm and 10cm respectively.

Calculate the image height