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Q1. | How many distinct binary trees can be constructed with three nodes? |

A. | 1 [Wrong Answer] |

B. | 2 [Wrong Answer] |

C. | 3 [Wrong Answer] |

D. | 5 [Correct Answer] |

View Answer
Explanation:-
Answer : DDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ The function

*f*(

*x*-

*v*

_{ot}) represent which of the following?

A stationary wave

A wave motion in forward direction

A wave motion in reverse direction

None of the above

⇒ The number of valence electrons in acceptor impurity are

5

4

3

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⇒ Which TM mode in rectangular waveguide has lowest cutoff frequency?

TM

_{11}

TM

_{01}

TM

_{10}

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⇒ For a second order instrument, the optimum range of ξ (damping ratio), which gives good frequency response over a wide range of frequencies is

0.5 to 0.6

0.6 to 0.7

0.7 to 0.8

0.8 to 1.0

⇒ While AM has __________ frequencies, FM has __________ number of sidebands.

2, 3

3, 3

3, 5

3, infinite

⇒ The given characteristic polynomial

*s*

^{4}+

*s*

^{3}+ 2

*s*

^{2}+ 2

*s*+ 3 = 0 has

zero root in RHS of

*s*-plane

one root in RHS of

*s*-plane

two roots in RHS of

*s*-plane

three roots in RHS of

*s*-plane

⇒ If E

_{b}, the energy per bit of a binary digital signal is 10

^{-6}watt sec. and the one sided power spectral density of the white noise N

_{0}= 10

^{-5}W/Hz, then the output SNR of the matched filter is

26 dB

10 dB

20 dB

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⇒ A conductor carries 10 A current in +

*x*direction and is lying in a field having a flux density 0.2 T directed along +

*z*direction. The magnitude of force per metre length and direction are

2 N, +

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2 N, -

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*y*direction

0.02 N, -

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⇒ The load end of a quarter wave transformer gets disconnected thereby causing an open-circuited load. What will be the input impedance of the transformer?

Zero

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Finite and Positive

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Maximum power transfer theorem

Millman's theorem

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⇒ A 4 bit counter with four flip-flops will count upto decimal

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⇒ High frequency inductors and capacitors are commonly plated with silver. The main purpose of this is to

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increase ac resistance

⇒ When a

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the width of depletion layer decreases

the majority carriers move away from the junction

the current is very small

⇒ A computer program is used to read N and print the sum 1

^{2}+ 2

^{2}+ 3

^{2}+.....+ N

^{2}. If N = 10, the print out will show the number

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⇒ For the circuit shown in the following figure I

_{0}-I

_{3}are inputs to the 4:1 multiplexer R(MSB) and S are control

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P Q + PQ R + P Q S

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⇒ A loss less line is terminated in a circular lines are E lines

SWR = 0

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⇒ An RLC series circuit is fed form 100 V ac supply. Inductance is 1 H and Q = 7.5. At resonance, the voltage across inductance is

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100 V

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1500 V

⇒ The function to Calculate the maximum value in the specified field of a database is

DM

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MAX

DBMAX

⇒

**Assertion (A):** Typical value of thermal resistance from source to sink of an SCR is about 0.3° C/W

**Reason (R):** Heat sinks of thyristors are generally made of aluminium.

Both A and R are correct and R is correct explanation of A

Both A and R correct but R is not correct explanation of A

A is correct but R is wrong

A is wrong but R is correct

⇒ In a bipolar junction transistor a

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735 mA

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⇒ In 8085, Whenever a signal is received at TRAP terminal its program execution is transferred to a subroutine on address __________ .

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0024 H

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3 leads

4 leads

5 leads

⇒ Which junction transistor is preferred for high input and low output impedances?

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Common base

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Any of the above

⇒ To cover all inhabited regions of the Earth, the number of geosynchronous communication satellites required

5

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⇒ If a zero is added to a second order underdamped system

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either (a) or (b)

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⇒ In a half wave diode rectifier circuit the current flows in the load circuit for

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180° in each cycle

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⇒ If average correlation between

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_{1}(

*t*) and

*v*

_{2}(

*t*) is R

_{12}(

*t*) and average correlation between

*v*

_{2}(

*t*) and

*v*

_{1}(

*t*) is R

_{21}(

*t*) then

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R

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_{12}(t)

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_{21}(t)

none of these

⇒ If a signal band limited for

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_{m}*f*the reconstructed signal will be

_{m}smaller in amplitude

distorted

having higher frequencies suppressed

none of the above