NEET Physics: Questions 1033 - 1035 of 2099

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Question number: 1033

» Ray Optics » Deviation and Dispersion of Light by a Prism

Assertion-Reason▾

Assertion (Ꭺ)

Dispersion of light occurs because velocity of light in a material depends upon its color.

Reason (Ꭱ)

The dispersive power depends only upon the material of the prism, not upon the refracting angle of the prism.

Choices

Choice (4) Response
a. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ
b. Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ
c. Ꭺ is false but Ꭱ is true
d. Both Ꭺ and Ꭱ are false

Question number: 1034

» Electromagnetic Induction & Alternating Currents » LCR Series Circuit

MCQ▾

Question

For the series LCR circuit shown in the figure, what is the resonance frequency and the amplitude of the current at the resonating frequency

LCR circuit diagram

LCR Circuit Diagram

In figure L = 8 mH, C = 20 µF and R = 44 Ω are connected in series with 220 V ac supply.

Choices

Choice (4) Response
a.

2500radS1and52A

b.

2500radS1and52A

c.

2500radS1and5A

d.

25radS1and52A

Question number: 1035

» Ray Optics » Reflection and Refraction of Light » Smooth Surface

MCQ▾

Question

In an experiment to determine the focal length (f) of a concave mirror by the u - v method, a student places the object pin A on the principal axis at a distance x from the pole P. The student looks at the pin and its inverted image from a distance keeping his/her eye in line with PA. When the student shifts his/her eye towards left, the image appears to the right of the object pin. Then,

Choices

Choice (4) Response
a.

x < f

b.

x = 2 f

c.

f < x < 2f

d.

x > If

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