Question Answers

n-alpha particles per second are emitted from N atoms of a radioactive element. The half-life of the radioactive element is n-alpha particles per second are emitted from N atoms of a radioactive element. The half-life of the radioactive element is November 28, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry [...]

When gypsum is heated to 393 K, it forms (a) Dead burnt plaster (b) Anhydrous CaSO4 (c) CaSO4.5H2O it forms (a) Dead burnt plaster (b) Anhydrous CaSO4 (c) CaSO4.5H2O When gypsum is heated to 393 K November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The number of bonds between sulphur and oxygen atoms in S2O8 2- and the number of bonds between sulphur and sulphur atoms in rhombic sulplhur, respectively, are are respectively The number of bonds between sulphur and oxygen atoms in S2O8 2- and the number of bonds between sulphur and sulphur atoms in rhombic sulplhur November [...]

Among the statement (A)-(D), the correct ones are (A) Decomposition of hydrogen peroxide gives dioxygen Among the statement (A)-(D) the correct ones are (A) Decomposition of hydrogen peroxide gives dioxygen November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

According to Heisenberg’s uncertainty principle, the product of uncertainities in position and velocities for an electron of mass 9.1 x 10^-31 kg is According to Heisenberg's uncertainty principle the product of uncertainities in position and velocities for an electron of mass 9.1 x 10^-31 kg is November 28, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

If uncertainty in the position of an electron is zero, the uncertainty in its momentum would be If uncertainty in the position of an electron is zero the uncertainty in its momentum would be November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In comparison to the zeolite process for the removal of permanent hardness, the synthetic resins method is In comparison to the zeolite process for the removal of permanent hardness the synthetic resins method is November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

“The position and velocity of a small particle like electron cannot be simultaneously determined.”This statement is "The position and velocity of a small particle like electron cannot be simultaneously determined."This statement is November 28, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

The INCORRECT statement is (a) Lithium is least reactive with water among the alkali metals (b) LiCl crystallises from aqueous solution as LiCl.2H2O The INCORRECT statement is (a) Lithium is least reactive with water among the alkali metals (b) LiCl crystallises from aqueous solution as LiCl.2H2O November 28, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

The uncertainities in the velocities of two particles, A and B are 0.05 and 0.02 m/s , respectively . The mass of B is five times to that of the mass of A. what is the ratio of uncertainities [ deltaxA/deltaxB] in their positions A and B are 0.05 and 0.02 m/s respectively . The [...]