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Q1. | Which mode has the minimum cutoff frequency in rectangular wave guides? |

A. | TE_{11} [Wrong Answer] |

B. | TE_{10} [Correct Answer] |

C. | TE_{01} [Wrong Answer] |

D. | TE_{20} [Wrong Answer] |

View Answer
Explanation:-
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**Also Read Similar Questions Below :**

⇒ It is desired to display the digit 7 using a seven segment display. The LEDs to be turned on are

*a, b, c*

*b, c, d*

*c, d, e*

*a, b, d*

⇒ (1001-10) is equal to

7

(8)

_{8}

(7)

_{4}

(8)

_{4}

⇒

**Assertion (A):** Orbital magnetic moment of an electron in an atom is of the order of 1 Bohr magneton.

**Reason (R):** 1 Bohr magneton = 9.27 x 10^{-24} A/m^{2}.

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

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

A is true but R is false

A is false but R is true

⇒ In a bridge inverter

an output transformer is essential

an output transformer is not essential

an output transformer cannot be connected

an output transformer, if used, can improve the efficiency of the circuit

⇒ A wave is propagated in a waveguide at frequency of 9 GHz and separation is 2 cm between walls Calculate group velocity for dominant mode.

1.8 x 10

^{8}m/sec

5 x 10

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3 x 10

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1.5 x 10

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⇒ In a parallel resonant circuit, the circuit current at resonance is maximum.

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**Assertion (A):** A GTO can be turned on and turned off by gate pulses

**Reason (R):** A GTO can be turned off by negative gate pulse.

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

⇒ If

*i*

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*e*

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30 and 1

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⇒ In the graphical analysis of CE amplifier circuit, the intersection of base current and dc load line is called

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_{B}will be if V

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_{C}= 5 kΩ, R

_{S}= 90 kΩ, β = 50, I

_{CE}= 0, V

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230 K

235 K

240 K

250 K

⇒ Which of the following terms are equivalent?

- A ⊕ B ⊕ C
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1 and 4; 2 and 3

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8 bits

12 bits

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^{8}p

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7.5 kHz

75 kHz

100 MHz

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point to point communication

radar

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6.24 x 10

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∞

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⇒ In oscillator circuits the energy feedback to its input terminal from output is

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180° out of phase with the input signal

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⇒ Nyquist stability criterion is based on a theorem from the theory of complex variables.

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⇒ Equipment using BCD numbers

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⇒ If

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^{n}

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*p*

^{r}*q*

^{n}

^{-}

^{r}

^{n}*c*

_{r}

*p*

^{n -}

^{r}*q*

^{r}^{n}

*c*

_{r}

*p*

^{r}*q*

^{n}

^{+}

^{r}

^{n}*c*

_{r}*p*

^{n}*q*

^{n}^{- r}

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1

1.5

2

15