Write the equation δ ( t ) ∗ δ ( t ) . Use d(t+A), u(t+B), r(t+A) to represent the delay, step and ramp functions respectively. A is a positive or negative constant. If you need to scale a function use B*u(t) for a step function, with zero delay scaled by B.

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

On a average work day more than work place firs are reorted

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?