The blank distance is your answer
Answer:
<em>The fringe spacing on a distant diffraction screen will increase.</em>
Explanation:
Blue light has a shorter wavelength than red light, so, changing from blue to red light is basically increasing the wavelength of the light involved in the experiment.
In the double slit experiment, the fringe spacing on a diffraction screen is calculated from the equation below
ω = zλ/d
where ω is the fringe spacing
z is the distance of the slit to the screen
λ is the wavelength of the light used
d is separation or distance between the slits
From the equation, one can see that if other parameters are held constant, <em>increasing the wavelength will lead to an increase in the spacing between the fringes, and hence, changing the light from blue to red light will increase the fringe spacing.</em>
Photon has no rest mass but when photon travels at the speed of light, it gains momentum.
The energy of the photon is E= pc, c = speed of the photon and p= its momentum.
∴ E = pc
but p = h/λ (This comes from De-broglie's theory)
∴ E = hc/λ
frequency = ν = c/λ
∴E = hν
Answer:D
Explanation:
A secondary battery or rechargeable battery is a battery that can be discharged and recharged.
It is an elcetrochemical cell which involve redox reaction i.e. oxidation and reduction. Oxidation is a process of loosing the electrons while reduction involves gaining of electron.
During discharging battery act as galvanic cell in which Chemical energy is converted into Electrical energy.
During Charging battery act as Electrolytic cell in which Electrical energy is converted in to chemical energy.