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American National Curriculum

Class 12

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Class 12 Questions asked by Filo students

Question 1

experiment.

.5

In Youngs double-slit experiment using monochromatic light of wavelength

λ

, the intensity of light at a point on the screen where path difference is

λ

, is

K

units. What is the intensity of light at a point where path difference is

λ /3 ?

Topic:

Optics

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Question 2

What will be the current in circuit?

$\frac{3}{40} A$
$\frac{1}{10} A$
$\frac{3}{50} A$
$\frac{3}{10} A$

Topic:

Atoms, Nuclei & Dual nature

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Question 3

Maxwell eqn represent four laws of e electromagnetism. Max well Ampere law relates

to tatal current
Displacement current
रविवार (C) conduction current
None of these

Topic:

Magnetism, EMI & AC

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Question 4

The energy of emitted photo electron depends up on

Intensity of light
Wave length of light
Work-function of metal
None of these

Topic:

Optics

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Question 5

- Catching The Train at a Crossing: A railvay track runs paraliel to a road until a turn brings the road to a railway crossing. A cyclist rides along the road everyday at a constant speed of

20 km / hr

. He normally meets the train that travels in same direction at the crossing. One day he wras late by 25 min and met the train

10 km

before the railway crossing. Find the speed of the train.

Topic:

Mechanics

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Question 6

There is an infinite wire grid with regular hexagon cells. The resistance of each wire between neighboring joint connections is equal to R. Choose the correct alternative

Equivalent between A & B is $\frac{2 R}{3}$ .
Equivalent between A & C is $R$ .
Equivalent between A & B is $R$ .
Equivalent between A & C is $\frac{2 R}{3}$ .

Topic:

Electrostats

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Question 7

Find the value of ∫2x cos (x2 – 5)

Topic:

Integration

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Question 8

ATTEMPT ANY TWO PARTS solve the following equation using Cramer's

2 x - y + z = 3 x + 3 y - 2 z = 11 3 x - 2 y + 4 z = 1 1 + a 11 1 1 + b 1 11 1 + c = ab c (\frac{1}{a} +

Topic:

Algebra 1

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Question 9

b. 11 Arithmetical means are inserted between 28 and 10 . find the three middle terms .

Topic:

Algebra 1

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Question 10

Shiva: Date (i) - रेनॉल्ड संख्या क्या है इस संख्या की सहायता से आप द्रव का प्रवाह कैसे ज्ञात करेंगें ठोस के रैखिक सतह और आयतन विस्तार के गुणांक के परिभाषित करें और उनके बीच संबंध प्राप्त करें।

Topic:

Physics

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Question 11

ठोस के रैखिक सतह और आयतन विस्ता के गुणांक के परिभाषित करें और उनके संबंध प्राप्त करें।

Topic:

Physics

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Question 12

a = 4 \overset{}{^} - 3 \overset{}{^} + 5 \hat{k} and b = 3 \overset{}{^} + 4 \overset{}{^} - 6 \hat{k}

then find

a \times b

Topic:

Algebra 1

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Question 13

a = 4 \overset{}{^} - 3 \overset{}{^} + 5 \hat{k} and b = 3 \overset{}{^} + 4 \overset{}{^} - 6 \hat{k}

then find

a \times b

Topic:

Algebra 1

View solution

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