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What is 80cm decreased by 75 percent?
The answer is 20cm
What is he longest 20 cm 20 inches 200 mm 02m?
Convert them all into the same unit, for this case let's say cm. 20cm = 20cm 20 inches = 50.8cm 200mm = 20cm When you type 02m, do you mean 2m or 0.2m? 0.2m = 20cm 2m = 200cm If 0.2m, then 20 inches is the longest length. If 2m then that is the longest length.
What is 12 enlarged by 130 percent?
12 enlarged by 130% = 12*1.3 = 15.6
What is 20cm as a percentage of 800mm?
To find the percentage, you can use the formula: (20cm / 800mm) * 100. Simplifying this, you get (2.5 / 100) * 100 = 2.5%. Therefore, 20cm is 2.5% of 800mm.
A candle is placed on the principal axis of a concave mirror at a distance of 20 cm from the mirror the focal length of the mirror is 10cm the image formed will be?
Use 1/s + 1/s' = 1/f s = 20cm f = +10cm (positive since the mirror is concave) 1/s'=1/f - 1/s 1/s'=1/10 - 1/20 = 1/20 So, s'=20cm. The distance from the image to the mirror is 20cm, which is not surprising, since the object placed at 1/2 of the focal length and therefore exactly at the radius of curvature point. The image is real and inverted.
