MHT CET 2023 14th May Morning Shift | MHT CET Year Wise Previous Years Questions

In a thermodynamic system, $$\Delta U$$ represents the increases in its internal energy and dW is the work done by the system then correct statement out of the following is

$$\Delta \mathrm{U}=\mathrm{dW}$$ is an isothermal process

$$\Delta \mathrm{U}=-\mathrm{dW}$$ is an adiabatic process

$$\Delta \mathrm{U}=-\mathrm{dW}$$ is an isothermal process

$$\Delta \mathrm{U}=\mathrm{dW}$$ is an adiabatic process

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

A combination of two thin lenses in contact have power $$+10 \mathrm{D}$$. The power reduces to $$+6 \mathrm{D}$$ when the lenses are $$0.25 \mathrm{~m}$$ apart. The power of individual lens is

$$5 \mathrm{D}, 5 \mathrm{D}$$

$$6 \mathrm{D}, 4 \mathrm{D}$$

$$7 \mathrm{D}, 3 \mathrm{D}$$

$$8 \mathrm{D}, 2 \mathrm{D}$$

MHT CET 2023 14th May Morning Shift

MCQ (Single Correct Answer)

-0

The reciprocal of the total effective resistance of LCR a.c. circuit is called

impedance

admittance

resistance

inductive and capacitive reactance