The logic circuit as shown below has the input waveforms A and B as shown. Pick out the correct output waveform. 

 

1.  

2.  

3.  

4.  

Subtopic:  Logic gates |
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Direction: In each of the following questions, a Statement of assertion is given followed by a corresponding Statement of reason.

Assertion (A) Linear momentum of a body changes even when it is moving uniformly in a circle. 
Reason (R) In uniform circular motion velocity remains constant.

1. Both assertion and reason are true and reason is the correct explanation of assertion.

2. Both assertion and reason are true but reason is not the correct explanation of assertion.

3. Assertion is true but reason is false.

4. Both assertion and reason are false.

 

Subtopic:  Uniform Circular Motion |
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Assertion (A) The positively charged nucleus of an atom has a radius of almost 10-15 m
Reason (R) In α-particles scattering experiment, the distance of closest approach for α-particles is  \(\approx 10^{-15} \mathrm{~m}\)
1. Both assertion and reason are true and reason is the correct explanation of assertion
2. Both assertion and reason are true but reason is not the correct explanation of assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false
Subtopic:  Various Atomic Models |
From NCERT
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Assertion (A) An inductance and a resistance are connected in series with an AC circuit. In this circuit, the current and the potential difference across the resistance logs behind potential difference across the inductance by an angle 
Reason (R) In L-R circuit, voltage leads the current by phase angle which depends on the value of inductance and resistance both.
 

 


Direction: In each of the following questions, a Statement of assertion is given followed by a corresponding Statement of reason.
Assertion (A) The phenomenon of X-ray production is basically inverse of the photoelectric effect. 
Reason (R) X-rays are electromagnetic waves.

1. Both assertion and reason are true and reason is the correct explanation of assertion
2. Both assertion and reason are true but the reason is not the correct explanation of assertion.
3. Assertion is true but reason is false
4. Both assertion and reason are false

Subtopic:  Photoelectric Effect: Experiment |
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Direction: In each of the following questions, a Statement of assertion is given followed by a corresponding Statement of reason.
Assertion (A) When capacitive reactance is smaller than the inductive reactance in L-C-R circuit, emf leads the current. 

Reason (R) The phase angle is the angle between the alternation emf and alternation current of the circuit.

1. Both assertion and reason are true and reason is the correct explanation of assertion
2. Both assertion and reason are true but reason is not the correct explanation of assertion
3. Assertion is true but reason is false
4. Both assertion and reason are false

Subtopic:  Different Types of AC Circuits |
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