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Science

Ingestion-and-Digestion-1

Easy

Question

A small electric dipole is placed at origin with its dipole moment directed along positive x-axis. The direction of electric field at point $left parenthesis 2 comma times 2 square root of 2 comma 0 right parenthesis$ is

along z-axis
along y-axis
along negative y-axis
along negative z-axis

The correct answer is: along negative z-axis

$tan invisible function application theta equals fraction numerator y over denominator x end fraction equals square root of 2 semicolon cot invisible function application theta equals fraction numerator 1 over denominator square root of 2 end fraction text Also end text tan invisible function application alpha equals fraction numerator tan invisible function application theta over denominator 2 end fraction equals fraction numerator 1 over denominator square root of 2 end fraction equals cot invisible function application theta rightwards double arrow theta plus alpha equals 90 to the power of ring operator end exponent$

Related Questions to study

ingestion-and-digestion-1

Four charges are placed at the circumference of a dial clock as shown in figure If the clock has only hour hand, then the resultant force on a charge $q subscript 0 end subscript$ placed at the centre, points in the direction which shows the time as :–

Four charges are placed at the circumference of a dial clock as shown in figure If the clock has only hour hand, then the resultant force on a charge $q subscript 0 end subscript$ placed at the centre, points in the direction which shows the time as :–
scienceingestion-and-digestion-1

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For a spherically symmetrical charge distribution, electric field at a distance r from the centre of sphere is $stack E with rightwards arrow on top equals k r to the power of 7 end exponent r$ where k is a constant. What will be the volume charge density at a distance r from the centre of sphere ?

For a spherically symmetrical charge distribution, electric field at a distance r from the centre of sphere is $stack E with rightwards arrow on top equals k r to the power of 7 end exponent r$ where k is a constant. What will be the volume charge density at a distance r from the centre of sphere ?

scienceingestion-and-digestion-1

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Two positrons (e+) and two protons (P) are kept on four corners of a square of side a as shown in figure. The mass of proton is much larger than the mass of positron. Let q denotes the charge on the proton as well as the positron then the kinetic energies of one of the positrons and one of the protons respectively after a very long time will be

Two positrons (e+) and two protons (P) are kept on four corners of a square of side a as shown in figure. The mass of proton is much larger than the mass of positron. Let q denotes the charge on the proton as well as the positron then the kinetic energies of one of the positrons and one of the protons respectively after a very long time will be
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The air above the ocean and lakes is dry.

The air above the ocean and lakes is dry.

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The amount of water vapor in the air is calculated as humidity.

The amount of water vapor in the air is calculated as humidity.

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The amount of rainfall is measured by using a hygrometer.

The amount of rainfall is measured by using a hygrometer.

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The humidity in deserts is typically very low.

The humidity in deserts is typically very low.

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It is not easy to walk against the wind on a windy day.

It is not easy to walk against the wind on a windy day.

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Jasmine carried out an experiment. She placed two bowls of sand and water in the sunlight. She took the temperatures after an hour. She then took both the bowls into her home and placed them in an area with no light. She took another temperature after an hour and conducted the following observations:

Sand
Water

Before placing the bowls in the sunlight
37⁰C
30⁰C

After keeping the bowls in the sunlight for one hour
37⁰C
32⁰C

After keeping the bowl inside the house for one hour
31⁰C
31⁰C

How much does the temperature increase of the sand after an hour in the sun?

Jasmine carried out an experiment. She placed two bowls of sand and water in the sunlight. She took the temperatures after an hour. She then took both the bowls into her home and placed them in an area with no light. She took another temperature after an hour and conducted the following observations:

Sand
Water

Before placing the bowls in the sunlight
37⁰C
30⁰C

After keeping the bowls in the sunlight for one hour
37⁰C
32⁰C

After keeping the bowl inside the house for one hour
31⁰C
31⁰C

How much does the temperature increase of the sand after an hour in the sun?

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Match the following.

A. Barometer
1.

B. Rain gauge
2.

C. Wind vane
3.

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A. Barometer
1.

B. Rain gauge
2.

C. Wind vane
3.

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Hygrometer is used to measure the air pressure.

Hygrometer is used to measure the air pressure.

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Read the statement given by John and Alan. Who is correct?

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Direction: Read the statements and select the correct option.
Statement A: Season refers to when a particular type of weather persists over a large area for an extended period of time.
Statement B: Rain is defined as moving air.

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Statement B: Rain is defined as moving air.

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In which of the following image will the humidity be more?

In which of the following image will the humidity be more?

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