# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1699 - 1702 of 2184

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## Question number: 1699

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MCQ▾

### Question

If L 1, L 2, L 3 are the lengths of the emitter, base and collector of a transistor then,

### Choices

Choice (4) Response

a.

L 1 > L 3 > L 2

b.

L 3 < L 1 < L 2

c.

L 3 < L 2 > L 1

d.

L 1 = L 2 = L 3

## Question number: 1700

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MCQ▾

### Question

Given below are four logic gates symbol (figure). Those for OR, NOR and NAND are respectively

### Choices

Choice (4) Response

a. Symbols of Logic Gate of or, nor, NAND and and– Choice A In figure symbol of logic gate is shown

b. Symbols of Logic Gate of or, nor, NAND and and– Choice B In figure symbol of logic gate is shown

c. Symbols of Logic Gate of or, nor, NAND and and– Choice C In figure symbol of logic gate is shown

d. Symbols of Logic Gate of or, nor, NAND and and– Choice D In figure symbol of logic gate is shown

## Question number: 1701

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MCQ▾

### Question

The combination of gates shown below produces Circuit Diagram of the Combination of 4 Gates In figure combination of three NOT gates and a NOR gate is shown. A & B are inputs and Y is a output of this circuit.

### Choices

Choice (4) Response

a.

AND gate

b.

NAND gate

c.

XOR gate

d.

NOR gate

## Question number: 1702

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MCQ▾

### Question

In an NPN transistor 10 10 electrons enter the emitter in 10 -6 s and 2 % electrons recombine with holes in base, then α and β respectively are,

### Choices

Choice (4) Response

a.

α = 0.49, β = 98

b.

α = 49, β = 0.98

c.

α = 0.98, β = 49

d.

α = 98, β = 0.49