Answer:
V = 152.542 volts
Explanation:
Given data:
area of plates
distance between the plates is 
charge = 
we know that capacitance is given as


potential difference is given as

V = 152.542 volts
Answer:
2.46 eV
Explanation:
It is given that,
The energy of light that fall on the metal = 3.56 eV
The stopping potential of the metal = 1.1 V
We need to find the work function of the metal. It is given by the relation as follows :
W = E-KE ...(1)
Where KE is the kinetic energy of the ejected electron and it is given by :
KE = V×e
= 1.1 eV
Put all the values in formula (1)
W = 3.56 eV - 1.1 eV
= 2.46 eV
Hence, the work function of the metal is 2.46 eV. Hence, the correct option is (c).
Answer:
The strength of magnetic field is
T
Explanation:
Given:
Length of rod
m
Velocity

Induced emf
V
According to the faraday's law
Induced emf = 
We have to find strength of the magnetic field,

T
Therefore, the strength of magnetic field is
T
Answer:
The correct answer is
b. Feeding yourself with a spoon
Explanation:
There are two categories of motor skills, fine motor skills and gross motor skills
Fine motorskills also known as dexterity is the synchronized use of small muscles like muscles in the wrists, hands and fingers along with the eyes. Fine motor skills are used for tasks like turning pages or using the computer key board that requires coordinated and precise movements. Human dexterity is reflected in the level of complexity of functions controlled by the nervous system.
Example of fine motor skill is Feeding yourself with a spoon while gross motor skill includes climbing to the top of a large hill spoon, running in a race and crawling