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A TV tower stands vertically on a bank of a canal. From a point on the other bank directly opposite the tower, the angle of elevation of the top of the tower is 60 degree . From another point 20 m away from this point on the line joing this point to the foot of the tower, the angle of elevation of the top of the tower is 30 degree (see Fig.). Find the height of the tower and the width of the canal.
05
Oct
A TV tower stands vertically on a bank of a canal. From a point on the other bank directly opposite the tower, the angle of elevation of the top of the tower is 60 degree . From another point 20 m away from this point on the line joing this point to the foot of [...]
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A TV tower stands vertically on a bank of a canal. From a point on the other bank directly opposite the tower ,
the angle of elevation of the top of the tower is 30 degree (see Fig.). Find the height of the tower and the width of the canal. ,
the angle of elevation of the top of the tower is 60 degree . From another point 20 m away from this point on the line joing this point to the foot of the tower ,
Two poles of equal heights are standing opposite to each other, on either side of the road, which is 80 m wide. From a point between them on the road, the angles of elevation of top of the poles are 60 degree and 30 degree respectively. Find the height of the poles.
05
Oct
Two poles of equal heights are standing opposite to each other, on either side of the road, which is 80 m wide. From a point between them on the road, the angles of elevation of top of the poles are 60 degree and 30 degree respectively. Find the height of the poles. on either side [...]
A ray of light travelling in air is incident at angle of incident 30 on one surface of slab in which refractive index varies with y. The light travels along the curve y = 4 x^2 (Y and X are in meter) in the slab.
05
Oct
A ray of light travelling in air is incident at angle of incident 30 on one surface of slab in which refractive index varies with y. The light travels along the curve y = 4 x^2 (Y and X are in meter) in the slab. A concave mirror of radius R is kept on a [...]
The angle of elevation of the top of the building from the foot of the tower is 30 and the angle of the top of the tower from the foot of the building is 60. If the tower is 50 m high, find the height of the building.
05
Oct
The angle of elevation of the top of the building from the foot of the tower is 30 and the angle of the top of the tower from the foot of the building is 60. If the tower is 50 m high, find the height of the building. find the height of the building. The [...]
The refractive index of an anisotropic medium varies as mu = mu 0 root (x + 1), where 0 < x < a. A ray of light is incident at the origin just along y axis (shown in figure).
05
Oct
The refractive index of an anisotropic medium varies as mu = mu 0 root (x + 1), where 0 < x < a. A ray of light is incident at the origin just along y axis (shown in figure). The refractive index of an anisotropic medium varies as mu = mu 0 root (x + [...]
A statue 1.6 m tall, stands on the top of the pedestal. From a point on the ground, the angle of elevation of the top of the statue is 60° and from the same point the angle of elevation of the top of the pedestal is 45°. Find the height of the pedestal
05
Oct
A statue 1.6 m tall, stands on the top of the pedestal. From a point on the ground, the angle of elevation of the top of the statue is 60° and from the same point the angle of elevation of the top of the pedestal is 45°. Find the height of the pedestal A statue [...]
The image of an object kept at a distance of 30 cm in front of a concave mirror is found to coincide with itself. If a glass slab ( mu = 1.5) of thickness 3 cm is introduced between the mirror and the object, then
05
Oct
The image of an object kept at a distance of 30 cm in front of a concave mirror is found to coincide with itself. If a glass slab ( mu = 1.5) of thickness 3 cm is introduced between the mirror and the object, then A concave mirror of radius R is kept on a [...]
From a point on the ground the angles of elevation of the bottom and top of a transmission tower fixed at the top of 20 m high building are 45 degree and 60 degree , respectively. Find the height of the transmission tower.
05
Oct
From a point on the ground the angles of elevation of the bottom and top of a transmission tower fixed at the top of 20 m high building are 45 degree and 60 degree , respectively. Find the height of the transmission tower. From a point on the ground the angles of elevation of the [...]
An object is placed on the principal axis of a concave mirror of focal length 10 cm at a distance of 21 cm from it. A glass slab is placed between the mirror and the object as shown in figure.
05
Oct
An object is placed on the principal axis of a concave mirror of focal length 10 cm at a distance of 21 cm from it. A glass slab is placed between the mirror and the object as shown in figure. An object is placed on the principal axis of a concave mirror of focal length [...]
A kite is flying at a height of 60m above the ground. The string attached to the kite is temporarily tied to a point on the ground.
05
Oct
A kite is flying at a height of 60m above the ground. The string attached to the kite is temporarily tied to a point on the ground. A kite is flying at a height of 60m above the ground. The string attached to the kite is temporarily tied to a point on the ground. October [...]