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Mdcat-past-papers Quiz

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3561. What is the radius of the 3rd orbit of electron in H-atom?



3562. Proton is --- times heavier than electron.



3563. The amount of energy associated with quantum of radiation is directly proportional to:



3564. With increases in the value of principal Quantum Numbers 'n' the shape of s-orbital, remains the same although their sizes:



3565. There are four orbitals s,p,d,f which order is correct with respect to the increasing energy of the orbital?



3566. Which gas in the discharge tube produces lightest canal ray particles?



3567. The p orbital has



3568. Which of the following has only one orientation in space and in magnetic field?



3569. The Magnetic quantum number of 4f orbital would be



3570. If value of azimuthal quantum number is l then value of m will range from:



3571. The dumb bell like orbitals can move in how many directions?



3572. The relationship between quantum number n and l is



3573. What is the magnetic quantum number for S-orbital?



3574. Which of the following sub-shell does not exist?



3575. Azimuthal quantum number is represented by:



3576. If the maximum value of n is 4 then the total electrons in atom will be:



3577. In an atom , A electron move in the energy level n=1, while the other electron move in n=3, What are ratios of Kinetic energy of A and B?



3578. Shape of subshell is explained by



3579. 'n' represents which of the following quantum number?



3580. The mass of electron is: