Suppose you have three concave mirrors A, B and C of focal length 10 cm, 15 cm and 20 cm. For eachconcave mirror you perform the experiment of image formation for three values of object distance of 10cm, 20 cm and 30 cm. Giving reason answer the following:(a) For the three object distances, identify the mirror/mirrors which will form an image of magnification-1.(b) Out of the three mirrors identify the mirror which would be preferred to be used for shavingpurposes/makeup.(c) For the mirror B, draw ray diagram for image formation for object distances 10 cm and 20 cm

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

the tires are rotating at 0.434 rpmlinear speed=45 m/sdiameter=0.550 mradius=0.275 mnow v= rωω= v/rω=45/0.275ω=163.6 rad/sω=163.6 rad/s (1rev/2π rad) (60s/1m)ω=1563 rpm

answergravity;

its a circle not a square that's simple silly.

explanation: