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

dang that balls went far

it was given as a lesson and guide for prayer.

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.