Q4) A point (X, Y) is selected at random inside a triangle 0<y<x/2<1. A) Find out cumulative distribution function of X, Y b) Find out marginal CDF of X. C) Find out the probability of event P[X<1/2, Y<3/4].

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Burgers vector is generally parallel to the dislocation line. a)-true b)-false

The higher the astm grain size number, the finer the gran is. a)-true b)-false