Assertion : If we look clearly at the shadow cast by an opaque object, close to the region of geometrical shadow, alternate dark and bright regions can be seen.
Reason : This happens due to the phenomenon of interference.

The penetration of waves into the region of geometrical shadow is due to

Assertion The rate of decomposition of detritus is reduced in the regions of high altitude. Reason It happens due to immobilisation of nutrients.

Due to which optical phenomenon we do not see the shadow of opaque object clearly ?

We obtained alternate dark and bright regions If we look at the shadow byan obstacle close to geometrical shadow. a. Mention the phenomenon behind it. b.Differentiate the interference pattern with a coherently illuminated single slit diffraction pattern.

State whether the following statements are true or false: An opaque object stops the light completely therefore, it casts a dark shadow

Assertion and Reason. Mark the correct choice as:Assertion:We can see the rainbow in the sky when the rain starts falling after a spell of bright sunlight. Reason: The rainbow is formed due to disprsion of light.

Assertion A beam of electron can pass undeflected through a region of E and B. Reason Force on moving charged particle due to magnetic field may be zero in some cases.