Test your physics (conceptual questions for JEE)



JEE main and Advanced examination requires lot of knowlegde.I am here giving few good for JEE

Test your ( for Jee)

Question 1

If relative permeability of iron is 5500 then its magnetic susceptibility is

(a) 5500 x 107

(b) 5501

(c) 5499

(d) 5500 x 10-7

 

Question 2

An atom is paramagnetic if it has

(a) an electric dipole moment

(b) no magnetic moment

(c) a magnetic moment

(d) no electric dipole moment

 

Question 3

Magnetic moment of a diamegnetic atim is

(a) 0

(b) infinity

(c) negative

(d) positive

 

Question 4

Mark the correct statement(s)

(a) When a particle moves under uniform circular motion its acceleration is constant

(b) Under the influence of uniform circular motion , instantaneous acceleration is perpandicular to the tangential velocity

(c) Under the influence of non-uniform circular motion , instantaneous acceleration is perpandicular to the tangential velocity

(d) All the above

 



Qiestion 5

In a meter bridge apparatus , the bridge wire should have

(a) high resistivity and low temperature coefficent

(b) high resistivity and high temperature coefficent

(c) low resistivity and high temperature coefficent

(d) low resistivity and low temperature coefficent

 

Question 6

Mark out the correct statement

(a) Image formed by convex mirror can be real

(b) Image formed by convex mirror can be virtual

(c) Image formed by convex mirror can be magnified

(d) Image formed by convex mirror can be inverted

 

Answer

  1. c

  2. c

  3. a

  4. b …. When a particle moves under the influence of uniform circular motion magnitude of acceleration is always constant but direction of acceleration keeps changing, it always remains towards the centre . So acceleration is always perpandicular to the the tangential velocity in this case.

  5. a

  6. a,b,c,d

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