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Just a quick question regarding one of the optics equations.
The equation is M= - di/do where:
di= distance of the image and do= distance of the object.
No, it's safe to say that do will always be positive and therefore, depending on what the di is (the sign, if it is positive or negative) then that will determine whether the sign for magnification is positive or negative (and thus, upright or inverted), right?
so if di is negative, then the image itself is upright (negative, virtual, upright)
and if di is positive, then the image is inverted (positive, virtual, inverted) right?
However, I have also remember seeing a modified version of this equation that was M=hi/ho
where h refers to height.
#1) So, if in a problem we are not given the numerical value of the heights of image but given the heigh of the object, could we just solve for the value of M and multiply that by ho to find hi?
and if M is a number greater than one, then hi > ho ?
#2) what if we weren't given either hi or ho and asked to solve for hi. Could we just find M by dividing di/do, and then multiple M by do to get hi? I know it sounds confusion but since the equation is M=-di/d0 = hi/ho, couldn't you technically do this even if you weren't given the heights to begin with?...sorry I know that sounded confusing
The equation is M= - di/do where:
di= distance of the image and do= distance of the object.
No, it's safe to say that do will always be positive and therefore, depending on what the di is (the sign, if it is positive or negative) then that will determine whether the sign for magnification is positive or negative (and thus, upright or inverted), right?
so if di is negative, then the image itself is upright (negative, virtual, upright)
and if di is positive, then the image is inverted (positive, virtual, inverted) right?
However, I have also remember seeing a modified version of this equation that was M=hi/ho
where h refers to height.
#1) So, if in a problem we are not given the numerical value of the heights of image but given the heigh of the object, could we just solve for the value of M and multiply that by ho to find hi?
and if M is a number greater than one, then hi > ho ?
#2) what if we weren't given either hi or ho and asked to solve for hi. Could we just find M by dividing di/do, and then multiple M by do to get hi? I know it sounds confusion but since the equation is M=-di/d0 = hi/ho, couldn't you technically do this even if you weren't given the heights to begin with?...sorry I know that sounded confusing
