Moving Plane Mirror, Stationary Object

Q. An object is initially at a distance of $200\text{cm}$ from a plane mirror. If the mirror approaches the object at a speed of $15\text{cm/s}$, then after $8\text{sec}$ the distance between object and its image will be

1. $120\text{cm}$
2. $160\text{cm}$
3. $170\text{cm}$
4. $30\text{cm}$

Q. In the given figure, by what angle should the mirror be rotated such that the reflected ray becomes horizontal along positive x - axis?

1. ${10}^{\circ }$ clockwise
2. ${20}^{\circ }$ clockwise
3. ${20}^{\circ }$ anticlokwise
4. ${10}^{\circ }$ anticlockwise

Q. A plane mirror is placed at origin parallel of y- axis, facing the positive x–axis. An object starts from (2m, 0, 0) with a velocity of $(2\hat{i}+2\hat{j}$), relative velocity of image with respect to object is along

1. Positive x – axis
2. Negative x-axis
3. Positive y-axis
4. Negative y-axis

Q. A plane mirror is approaching you at a speed of 10 cm/sec You can see your image in it. At what speed will your image approach you

1. 10 cm/sec
2. 5 cm/sec
3. 20 cm/sec
4. 15 cm/sec

Q. "The galvanometer shown in the figure has resistance 10 Ω. It is shunted by a series combination of a resistance S = 1 Ω and an ideal cell of emf 2 V. A current 2 A passes as shown in the figure.
चित्र में दर्शाए गेल्वेनोमीटर का प्रतिरोध 10 Ω है। इसे प्रतिरोध S = 1 Ω तथा वि. वा. ब. 2 V के एक आदर्श सेल के श्रेणी संयोजन द्वारा शंटित किया जाता है। धारा 2 A चित्र में दर्शाए अनुसार गुजरती है।

1. The reading of the galvanometer is zero
   गेल्वेनोमीटर का पाठ्यांक शून्य है
2. The potential difference across the resistance S is 2 V
   प्रतिरोध S के सिरों पर विभवान्तर 2 V है
3. The reading of the galvanometer is 1 A
   गेल्वेनोमीटर का पाठ्यांक 1 A है
4. The potential difference across the resistance S is 1.5 V
   प्रतिरोध S के सिरों पर विभवान्तर 1.5 V है

Q. An object is initially at a distance of $200\text{cm}$ from a plane mirror. If the mirror approaches the object at a speed of $15\text{cm/s}$, then after $8\text{sec}$ the distance between object and its image will be

1. $120\text{cm}$
2. $160\text{cm}$
3. $170\text{cm}$
4. $30\text{cm}$

Q. A point object is kept near a plane mirror. The mirror starts moving away from the object with a speed of $4cm/s$. The velocity of the image is

1. $8cm/s,towardstheobject$
2. $8cm/s,awayfromtheobject$
3. $4cm/s,towardstheobject$
4. $4cm/s,awayfromtheobject$

Q.

A plane mirror is approaching you at a speed of you can see your image in it. At what speed will your image approach you

1. 
2. 
3. 

4. 

Q.

a plane mirror is moving with velocity 4i+5j+8k. a point object in front of the mirror moves with a velocity 3i+4j+5k. here k is normal to plane mirror and facing towards object. velocity of image is?