No because people change mentally over time. They could let some problems go or could develop others
Answer:
a) σa−σb−σc−σd=0
Explanation:
The parallel plate capacitor is the one in which two metal plates are connected in parallel with some distancing among them. The electric field from both plates is denoted by E = σ / 2ϵ0. The σ is the charge density. The Electric field in plate I will vanish when the surface charge of σa is positive and rest of the charges are negative. The correct option is a.
Answer
given,
wavelength (λ) = 650 nm
angle = 5°
using bragg's law



d = 7.46 x 10⁻⁴ cm
number of slits per centimeter
= 
b) wavelength of two rays 650 nm and 420 nm

d = 2 x 10⁻6 m
we now,

for 650 nm


θ = 40.54°
for 450 nm


θ = 24.83°
now, difference
|θ_{650} -θ_{420}| =40.54°-24.83°
|θ_{650} -θ_{420}| =19.71°
Answer:
both are subject to a person's interpretation.