Question # 1

The step-up transformer

Choose an answer

Increases the input current

Increase the input voltage

Has more turns in the primary

Has less turns in hte secondary coil

The output of OR gate would be '0' When:

Choose an answer

Both of its inputs are zero

One of its two inputs is zero

Both of its inputs ar 1

Any one of its inputs is 1

Snell's law is stated as:

Choose an answer

Sin i / sin r = n1/n2

sin i / sin r = n2/n1

sin r / sin i = n2/n1

sin r / sin i = 2n2/n1

The more negative potential of grid, the more electrons will be:

Choose an answer

Attracted

Repelled

Attracted as well as repelled

Neither attracted nor repelled

When a ray of light enters from denser medium to rare medium, the angle of incidence for which angle of refraction is 90^o is called:

Choose an answer

angle of incidence

critical angle

angle of refrection

None of these

The equivalent resistance in parallel combination is:

Choose an answer

R_c=R₁+R₂+R₃ +.................+R_n

R_c=1/R₁+1/R₂+1/R₃+.................+1/R_n

a and b

None of these

The current which changes its direction is called:

Choose an answer

Current

A.C.

Conventional current

D.C.

If we double both the current and the voltage in a circuit while keeping its resistance constant, the power.

Choose an answer

remains unchanged

halves

doubles

four time

The equivalent resistance of a parallel combination is

Choose an answer

equal to sum of all resistance

is greater than the largest resistance of combination

is smaller than the smallest resistance of combination

All of these

Analogue quantity is:

Choose an answer

Time

Pressure

Distance

All of these

the water waves after striking the hurdle will:

Choose an answer

reflect

refract

diffract

all a b and c

When a current carrying conductor is placed in magnetic field at right angle to it. The direction of force acting upon it is:

Choose an answer

The same as direction of field

Opposite the direction of field

Makes an angle of 45^owith the current

At right angle to both the field and the current.

An object is placed at the Centre of curvature of a concave mirror. The image produced by the mirror is located:

Choose an answer

Out beyond the centre of curvature

At the centre of curvature

Between the centre of curvature and the focal point

At the focal point

More Classes

Other Links

Physics 10th Class English Medium Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer