Homework Statement
if the tangent at a point P("theta") on the ellipse
16 (x^2) + 11 (y^2) = 256
is also tangent to the circle
(x^2) + (y^2) + 2(x) = 15
then ("theta") = ??
2. The attempt at a solution
{{{{ i have taken "theta" as "d" }}}}
P [4 cos d , (16/(sqrt11)) sin d]
equation of...
@haruspex i think i kind of get what you want to say that angle of refraction are not very much large...
so the diagram given above by @ehild would be an ideal diagram
and going by it it is pretty much clear that the incident rays converge on the same side on a point on the pricipal axis and...
If the plane surface of a plano-convex lens in silvered then which of the following statements is true?
1. it acts like a convex mirror
2. it acts like a concave mirror
3. it acts like a concave lens
4. no changemy attempt---
the incident ray on the convex surface of the plano-convex will...
i agree with your point of instantaneous acceleration i.e. here energy is lost due to abrupt motion of the rope in lump where it instantaneously changes from zero to a non-zero velocity...and thus we can't apply conservation of energy here in this problem...
please help me out with the solution...
i took this problem to one of my seniors and he gave me a different way to solve it which seems to be a much easier method...
it is as stated below...i would like to know about what you all think about this solution...
relative velocity=v-u ((this we all know and agree upon))
if u=0 i.e...
don't you think that this applies in only some cases but not in all...like if we go 30m towards north then back 20m towards south so here distance is 50m but displacement is 10m towards north