AIIMS Physics: Questions 143 - 146 of 500

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Question number: 143

» Dual Nature of Matter and Radiation » Photoelectric Effect

Appeared in Year: 2006

MCQ▾

Question

In photoelectric effect, the electrons are ejected from metals if the incident light has a certain minimum – [AIIMS]

Choices

Choice (4) Response
a.

Angle of incidence

b.

Wavelength

c.

Amplitude

d.

Frequency

Question number: 144

» Current Electricity » Series and Parallel Combinations of Resistors

Appeared in Year: 2005

MCQ▾

Question

For ensuring dissipation of same energy in all three resistors (R1, R2, R3) connected as shown in figure, their values must be related as - [AIIMS]

Combination of three resistors

Combination of Three Resistors

In figure combination of three resistors is shown.

Choices

Choice (4) Response
a.

R1=R2+R3

b.

R2=R3andR1=4R2

c.

R2=R3andR1=14R2

d.

R1=R2=R3

Question number: 145

» Electrostatics » Capacitors

Appeared in Year: 2000

MCQ▾

Question

Three capacitors of capacitance 3µF, 10µF and15µF are connected in series to a voltage source of 100V. The charge on 15µF is – [AIIMS]

Choices

Choice (4) Response
a.

200 µC

b.

160 µC

c.

280 µC

d.

50 µC

Question number: 146

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

Appeared in Year: 2005

MCQ▾

Question

A 50 Hz a. c. source of 20 volts is connected across R and C as shown in figure below. The voltage across R is 12 volts. The voltage across C is – [AIIMS]

RC series circuit diagram

RC Series Circuit Diagram

In figure resistance R and capacitor C is connected in series, with 50 Hz a. c. source of 20 volts supply.

Choices

Choice (4) Response
a.

Not possible to determine unless values of R and C are given

b.

8 V

c.

16V

d.

10 V

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