Field strength = force ÷ charge (E=F/Q)
E= 1.8×10^-1 ÷ 6.4×10^-7... to obtain ur answer
the formula is derived from the definition
Electric field : A region in space where a charged body experiences a force.
Answer:


Explanation:
for the transition from 148th orbit to 138th orbit
we know the formula

where R is Rydberg constant whose value is 
putting this value in equation




for the transition from 165th to 174th orbit
we know the formula

where R is Rydberg constant whose value is 
putting this value in equation




To my best knowledge the answer is D- Wavelength
Answer:
24445.85 J/s
Explanation:
Area, A = 300 m^2
T = 33° C = 33 + 273 = 306 k
To = 18° C = 18 + 273 = 291 k
emissivity, e = 0.9
Use the Stefan's Boltzman law

Where, e be the energy radiated per unit time, σ be the Stefan's constant, e be the emissivity, T be the temperature of the body and To be the absolute temperature of surroundings.
The value of Stefan's constant, σ = 5.67 x 10^-8 W/m^2k^4
By substituting the values

E = 24445.85 J/s
Answer:
When gamma rays pass through the human body, they ionize the tissue. gamma ray ionization can affect healthy cells. When high levels of gamma rays bombard a body, a resulting dangerous ionization of tissue can cause skin cancer.
Explanation: