A lens is made up of \(3\) different transparent media as shown in the figure. A point object \(O\) is placed on its axis beyond \(2f\). How many real images will be obtained on the other side?
        
1. \(2\) 2. \(1\)
3. No image will be formed  4. \(3\)

Subtopic:  Lenses |
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The diameter of a spherical bob, when measured with vernier callipers yielded the values: \(3.33\) cm, \(3.32\) cm, \(3.34\) cm, \(3.33\) cm and \(3.32\) cm. The mean diameter to appropriate significant figures is:
1. \(3.328\) cm
2. \(3.3\) cm
3. \(3.33\) cm
4. \(3.32\) cm
 
Subtopic:  Measurement & Measuring Devices |
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On the basis of electrical conductivity, which one of the following material has the smallest resistivity?
1. Germanium 
2. Silver
3. Glass
4. Silicon 
Subtopic:  Derivation of Ohm's Law |
 62%
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The mechanical quantity, which has dimensions of reciprocal of mass \((M^{-1}),\) is:
1. angular momentum
2. coefficient of thermal conductivity 
3. torque 
4. gravitational constant 
Subtopic:  Dimensions |
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For the given cycle, the work done during the isobaric process is:

            
1. \(200\) J
2. zero
3. \(400\) J
4. \(600\)
Subtopic:  Work Done by a Gas |
 52%
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An AC source is connected to the given circuit. The value of \(\phi\) will be:
          
1. \(60^\circ\) 2. \(90^\circ\)
3. \(30^\circ\) 4. \(45^\circ\)
Subtopic:  Different Types of AC Circuits |
 64%
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The given circuit is equivalent to:
        
1. 2.
3. 4.
Subtopic:  Logic gates |
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The position of a particle is given by;
\(\vec r(t)=4t\hat i+2t^2\hat j+5\hat k\)
where \(t\) is in seconds and \(r\) in metre. Find the magnitude and direction of velocity \(v(t)\), at \(t=1~\mathrm{s}\), with respect to \(x\)-axis:
1. \(4\sqrt2~\text{ms}^{-1},45^\circ\)
2. \(4\sqrt2~\text{ms}^{-1},60^\circ\)
3. \(3\sqrt2~\text{ms}^{-1},30^\circ\)
4. \(3\sqrt2~\text{ms}^{-1},45^\circ\)
Subtopic:  Speed & Velocity |
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The equivalent capacitance of the arrangement shown in the figure is:
             
1. \(30~\mu \text{F}\) 2. \(15~\mu \text{F}\)
3. \(25~\mu\text{F}\) 4. \(20~\mu\text{F}\)
Subtopic:  Combination of Capacitors |
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Match List - I with List - II
List-I List-II
(A) Protein (I) C=C double bonds
(B) Unsaturated fatty acid (II) Phosphodiester bond
(C) Nucleic acid (III) Glycosidic bonds
(D) Polysaccharide (IV) Peptide bonds
Choose the correct answer from the options given below:
Options: (A) (B) (C) (D)
1. II I IV III
2. IV III I II
3. IV I II III
4. I IV III II
Subtopic:  Nucleic Acid | Proteins | Lipids | Carbohydrates: Glycosidic Bond & Disaccharide |
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