Daily NEET MCQ- April 5, 2022 - NEET MCQ

From Einstein’s photoelectric equation, we have
1/2 MV² = h (v - v₀)
Since the frequency of blue light is greater than that of the red light, blue light emits electrons of greater kinetic energy.

There is no effect on stopping potential. The intensity of incident radiation is independent of stopping potential. Therefore, even if the incident radiation in a photo-cell is increased, the stopping potential remains unchanged.

When the plane of plane polarised light is rotated either to the left or right when passed through a compound, it is said to be optically active. Else, it is optically inactive.

A stereocenter is an asymmetric carbon that has four different groups attached to it. Propan-2-ol has two methyl groups attached to the carbon.

A chiral carbon atom is that which has four different substituent groups attached to it. 2-Bromopentane has one of each H, CH₃, C₃H₇ and Br groups attached to its C atom.

The vas deferens loops over the urinary bladder where it is joined by duct from the seminal vesicle to form the ejaculatory duct. The end of the vas deferens dilates to form a spindle-like ampulla for temporary storage of sperm.

The vas deferens is lined with pseudostratified columnar epithelium. The free end of its cells also bears stereocilia. The muscular wall of the vas deferens is formed of smooth muscles, and the latter’s peristaltic contractions propel the sperms through the vas deferens

External opening of the urethra is called urethral meatus. The male urethra provides a common pathway for the flow of urine called semen. It is much longer in male than in the female, measuring about 15-29 cm.

The second part is the membranous urethra which is situated behind the lower part of the pubic symphysis. The membranous urethra is the smallest urethra.

The penis is male genitalia (male copulatory organ). At the tip of the glans penis is the slit like opening called the external urethral orifice or urinogenital aperture.