Steve4Physics's latest activity
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SSteve4Physics replied to the thread Ice cube in water: entropy calculation (Calorimetry).Here’s a strategy to find the final state: 1) Calculate the amount of energy (A) needed to warm the ice to 0 deg.C. 2) Calculate the...
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SSteve4Physics reacted to palaphys's post in the thread Flux through a ring due to two charges with
Like.
This post makes everything clear. Very high quality. All my doubts on this question got cleared! for a) I will take the direction of... -
SSteve4Physics replied to the thread Flux through a ring due to two charges.@palaphys, for an intuition, it helps to visualise flux lines. In the following diagram, the magnitude of the flux through the loop due...
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SSteve4Physics reacted to palaphys's post in the thread Flux through a ring due to two charges with Like.
1.##\frac{q}{\epsilon_0}## 2. ##\frac{-q}{\epsilon_0}## 3a)0 b)0
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SSteve4Physics reacted to NTesla's post in the thread Power of a thin lens in a medium is 1/fₘ or μₘ/fₘ ? with Like.
The derivation of lens maker's formula already encapsulates the condition of refractive index of medium being different from that of the...
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SSteve4Physics reacted to NTesla's post in the thread Power of a thin lens in a medium is 1/fₘ or μₘ/fₘ ? with Like.
I'm not sure where you got this formula from. I've referred to more than 1 book, but couldn't find your version of the formula. I've...
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SSteve4Physics reacted to NTesla's post in the thread Power of a thin lens in a medium is 1/fₘ or μₘ/fₘ ? with
Agree.
I don't understand how did you reach that conclusion. Study material is NOT provided by NTA. As far as I know, only syllabus is provided... -
SSteve4Physics replied to the thread Power of a thin lens in a medium is 1/fₘ or μₘ/fₘ ?.Yes, you’re right. I had (badly) misunderstood the nature of unacademy. It is not linked to NTA. It appears to be a (fairly large...
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SSteve4Physics replied to the thread Flux through a ring due to two charges.In that case I agree with your values for the magnitudes of the fluxes. Though I would write '2/10' as '1/5'! Imagine lines of flux as...
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SSteve4Physics replied to the thread Flux through a ring due to two charges.Hi. A few thoughts… You haven’t given the radius of the ring. You haven’t mentioned how you have dealt with the charge of 2q on the...
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SSteve4Physics replied to the thread Power of a thin lens in a medium is 1/fₘ or μₘ/fₘ ?.As I understand it, NEET (UG) is an entrance examination set by the Indian National Testing Agency (NTA) for entrance to medical...
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SSteve4Physics reacted to shubhamakshit's post in the thread Power of a thin lens in a medium is 1/fₘ or μₘ/fₘ ? with Like.
Thank you all the same for I got my answer from the general formula you provided.
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SSteve4Physics replied to the thread Power of a thin lens in a medium is 1/fₘ or μₘ/fₘ ?.I’m not entirely sure why optical power is defined as ##P_m = \frac {\mu_m}{f_m}##. I suspect that the main reason is to enable powers...
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SSteve4Physics replied to the thread Power of a thin lens in a medium is 1/fₘ or μₘ/fₘ ?.Welcome to PF @shubhamakshit. The above formula only applies to a thin lens when the surrounding medium is air/vacuum (refractive index...
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SSteve4Physics reacted to jbriggs444's post in the thread Correct statement about siphon used to empty water tank with
Haha.
[Water] siphons stop working at about 0 C.
