Vitamin B12 contains metal
[Bihar MEE 1997; RPET 1999; Pb. PMT 1999; AFMC 2002;
CBSE PMT 2003; CPMT 2003; MP PMT 2003]
Ca (II)
Zn (II)
Fe (II)
Co (III)
CO (III) Transition metal is present in vitamin B12.
The total energy of a particle executing S.H.M. is proportional to
[CPMT 1974, 78; EAMCET 1994; RPET 1999;
MP PMT 2001; Pb. PMT 2002; MH CET 2002]
By Huygen's wave theory of light, we cannot explain the phenomenon of
[CPMT 1989; AFMC 1993, 99; MP PET 1995, 2003;RPMT 2003; BCECE 2003; Pb PMT 2004]
Which of the following molecule is paramagnetic
[CPMT 1980; RPET 1999;MP PMT 1999; RPMT 2000]
A light bulb is placed between two plane mirrors inclined at an angle of The number of images formed are
SCRA 1994; AIIMS 1997; RPMT 1999; AIEEE 2002;
Orissa JEE 2003; MP PMT 2004; MP PET 2004]