In Fig., name all rays with initial points as `A ,\ B\ a n d\ C` respectively. Is ray ` A B ` different from ray ` A C ` ? Is ray ` B A ` different from ray ` C A ` ? Is ray ` C P ` different from ray ` C Q ` ?

In given figure, name all rays with initial points as A, B and C respectively.

What are cathode rays and how do they differ from positive rays ?

The figure formed by two rays with the same initial point is know as a ray (b) a line (c) an angle (d) a line segment

The frequency of X -rays, , Gamma rays and visible light wave rays are a, b and c respectively , then

The frequency of x-rays, Y-rays and ultraviolet rays are respectively a, b and c Then

Consider the following figure of line MN Say whether following statements are true or false in context of the given figure. (a) Q, M, O, N, P are points on the line MN. (b) M, O, N are points on a line segment MN. (c) M and N are end points of line segment MN. (d) O and N are end points of line segment OP. (e) M is one of the end points of line segment QO. (f) M is point on ray OP. (g) Ray OP is different from ray QP. (h) Ray OP is same as ray OM. (i) Ray OM is not Opposite to ray OP. (j) O is not an initial point of OP. (k) N is the initial point of NP and NM.

The X-ray beam coming from an X-ray tube

In an x ray, if the accelerating potential different is changed , then: