Reflection of light by plane surface
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364635 Four identical mirrors are made to stand vertically to form a square arrangement as shown in a top view. A ray starts from the midpoint \({M}\) of mirror \({AD}\) and after two reflections reaches corner \({D}\). Then, \(\cot \theta=\)
supporting img

1 0.45
2 0.75
3 0.36
4 0.96
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364636 A plane mirror is approaching you at a speed of \(10\;cm{\rm{/}}\sec \). You can see your image in it. At what speed will your image approach you?

1 \(15\;cm{\rm{/}}\sec \)
2 \(5\;cm{\rm{/}}\sec \)
3 \(10\;cm{\rm{/}}\sec \)
4 \(20\;cm{\rm{/}}\sec \)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364637 A plane mirror is placed in \(y - z\) plane facing towards negative \(x\)-axis. The mirror is moving parallel to \(y\)-axis with a speed of \(2\;cm{\rm{/}}s\). A point object \(P\) is moving infront of the mirror with a velocity \(\left( {1\;cm/s} \right)\)\({\rm{\hat i + (1}}cm/s{\rm{)\hat j}}{\rm{.}}\) Then which of the following statements is incorrect?

1 The velocity of image with respect to mirror is \({\rm{ - (\hat i + \hat j) }}cm/s\)
2 The velocity of image is \({\rm{ - \hat i + \hat j}}\;cm/s\)
3 The unit vector parallel to the plane of the mirror is \(\frac{1}{{\sqrt 2 }}\hat j + \frac{1}{{\sqrt 2 }}\hat k\)
4 The velocity of image with respect to object is \({\rm{( - 2\hat i) }}cm/s\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364638 A person runs with a speed \(u\) towards a bicycle moving away from him with speed \({\rm{v}}\). The person approaches his image in the plane of the mirror fixed at the rear of bicycle with a speed of

1 \(u - 2v\)
2 \(u - v\)
3 \(2\left( {u - v} \right)\)
4 \(2u - v\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364639 An object is approaching a plane mirror at \(10\,cm{\rm{/}}s.\) A stationary observer sees the image. At what speed will the image approach the stationary observer?

1 \(15\,cm{s^{ - 1}}\)
2 \(10\,cm{s^{ - 1}}\)
3 \(5\,cm{s^{ - 1}}\)
4 \(20\,cm{s^{ - 1}}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364635 Four identical mirrors are made to stand vertically to form a square arrangement as shown in a top view. A ray starts from the midpoint \({M}\) of mirror \({AD}\) and after two reflections reaches corner \({D}\). Then, \(\cot \theta=\)
supporting img

1 0.45
2 0.75
3 0.36
4 0.96
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364636 A plane mirror is approaching you at a speed of \(10\;cm{\rm{/}}\sec \). You can see your image in it. At what speed will your image approach you?

1 \(15\;cm{\rm{/}}\sec \)
2 \(5\;cm{\rm{/}}\sec \)
3 \(10\;cm{\rm{/}}\sec \)
4 \(20\;cm{\rm{/}}\sec \)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364637 A plane mirror is placed in \(y - z\) plane facing towards negative \(x\)-axis. The mirror is moving parallel to \(y\)-axis with a speed of \(2\;cm{\rm{/}}s\). A point object \(P\) is moving infront of the mirror with a velocity \(\left( {1\;cm/s} \right)\)\({\rm{\hat i + (1}}cm/s{\rm{)\hat j}}{\rm{.}}\) Then which of the following statements is incorrect?

1 The velocity of image with respect to mirror is \({\rm{ - (\hat i + \hat j) }}cm/s\)
2 The velocity of image is \({\rm{ - \hat i + \hat j}}\;cm/s\)
3 The unit vector parallel to the plane of the mirror is \(\frac{1}{{\sqrt 2 }}\hat j + \frac{1}{{\sqrt 2 }}\hat k\)
4 The velocity of image with respect to object is \({\rm{( - 2\hat i) }}cm/s\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364638 A person runs with a speed \(u\) towards a bicycle moving away from him with speed \({\rm{v}}\). The person approaches his image in the plane of the mirror fixed at the rear of bicycle with a speed of

1 \(u - 2v\)
2 \(u - v\)
3 \(2\left( {u - v} \right)\)
4 \(2u - v\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364639 An object is approaching a plane mirror at \(10\,cm{\rm{/}}s.\) A stationary observer sees the image. At what speed will the image approach the stationary observer?

1 \(15\,cm{s^{ - 1}}\)
2 \(10\,cm{s^{ - 1}}\)
3 \(5\,cm{s^{ - 1}}\)
4 \(20\,cm{s^{ - 1}}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364635 Four identical mirrors are made to stand vertically to form a square arrangement as shown in a top view. A ray starts from the midpoint \({M}\) of mirror \({AD}\) and after two reflections reaches corner \({D}\). Then, \(\cot \theta=\)
supporting img

1 0.45
2 0.75
3 0.36
4 0.96
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364636 A plane mirror is approaching you at a speed of \(10\;cm{\rm{/}}\sec \). You can see your image in it. At what speed will your image approach you?

1 \(15\;cm{\rm{/}}\sec \)
2 \(5\;cm{\rm{/}}\sec \)
3 \(10\;cm{\rm{/}}\sec \)
4 \(20\;cm{\rm{/}}\sec \)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364637 A plane mirror is placed in \(y - z\) plane facing towards negative \(x\)-axis. The mirror is moving parallel to \(y\)-axis with a speed of \(2\;cm{\rm{/}}s\). A point object \(P\) is moving infront of the mirror with a velocity \(\left( {1\;cm/s} \right)\)\({\rm{\hat i + (1}}cm/s{\rm{)\hat j}}{\rm{.}}\) Then which of the following statements is incorrect?

1 The velocity of image with respect to mirror is \({\rm{ - (\hat i + \hat j) }}cm/s\)
2 The velocity of image is \({\rm{ - \hat i + \hat j}}\;cm/s\)
3 The unit vector parallel to the plane of the mirror is \(\frac{1}{{\sqrt 2 }}\hat j + \frac{1}{{\sqrt 2 }}\hat k\)
4 The velocity of image with respect to object is \({\rm{( - 2\hat i) }}cm/s\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364638 A person runs with a speed \(u\) towards a bicycle moving away from him with speed \({\rm{v}}\). The person approaches his image in the plane of the mirror fixed at the rear of bicycle with a speed of

1 \(u - 2v\)
2 \(u - v\)
3 \(2\left( {u - v} \right)\)
4 \(2u - v\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364639 An object is approaching a plane mirror at \(10\,cm{\rm{/}}s.\) A stationary observer sees the image. At what speed will the image approach the stationary observer?

1 \(15\,cm{s^{ - 1}}\)
2 \(10\,cm{s^{ - 1}}\)
3 \(5\,cm{s^{ - 1}}\)
4 \(20\,cm{s^{ - 1}}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364635 Four identical mirrors are made to stand vertically to form a square arrangement as shown in a top view. A ray starts from the midpoint \({M}\) of mirror \({AD}\) and after two reflections reaches corner \({D}\). Then, \(\cot \theta=\)
supporting img

1 0.45
2 0.75
3 0.36
4 0.96
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364636 A plane mirror is approaching you at a speed of \(10\;cm{\rm{/}}\sec \). You can see your image in it. At what speed will your image approach you?

1 \(15\;cm{\rm{/}}\sec \)
2 \(5\;cm{\rm{/}}\sec \)
3 \(10\;cm{\rm{/}}\sec \)
4 \(20\;cm{\rm{/}}\sec \)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364637 A plane mirror is placed in \(y - z\) plane facing towards negative \(x\)-axis. The mirror is moving parallel to \(y\)-axis with a speed of \(2\;cm{\rm{/}}s\). A point object \(P\) is moving infront of the mirror with a velocity \(\left( {1\;cm/s} \right)\)\({\rm{\hat i + (1}}cm/s{\rm{)\hat j}}{\rm{.}}\) Then which of the following statements is incorrect?

1 The velocity of image with respect to mirror is \({\rm{ - (\hat i + \hat j) }}cm/s\)
2 The velocity of image is \({\rm{ - \hat i + \hat j}}\;cm/s\)
3 The unit vector parallel to the plane of the mirror is \(\frac{1}{{\sqrt 2 }}\hat j + \frac{1}{{\sqrt 2 }}\hat k\)
4 The velocity of image with respect to object is \({\rm{( - 2\hat i) }}cm/s\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364638 A person runs with a speed \(u\) towards a bicycle moving away from him with speed \({\rm{v}}\). The person approaches his image in the plane of the mirror fixed at the rear of bicycle with a speed of

1 \(u - 2v\)
2 \(u - v\)
3 \(2\left( {u - v} \right)\)
4 \(2u - v\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364639 An object is approaching a plane mirror at \(10\,cm{\rm{/}}s.\) A stationary observer sees the image. At what speed will the image approach the stationary observer?

1 \(15\,cm{s^{ - 1}}\)
2 \(10\,cm{s^{ - 1}}\)
3 \(5\,cm{s^{ - 1}}\)
4 \(20\,cm{s^{ - 1}}\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364635 Four identical mirrors are made to stand vertically to form a square arrangement as shown in a top view. A ray starts from the midpoint \({M}\) of mirror \({AD}\) and after two reflections reaches corner \({D}\). Then, \(\cot \theta=\)
supporting img

1 0.45
2 0.75
3 0.36
4 0.96
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364636 A plane mirror is approaching you at a speed of \(10\;cm{\rm{/}}\sec \). You can see your image in it. At what speed will your image approach you?

1 \(15\;cm{\rm{/}}\sec \)
2 \(5\;cm{\rm{/}}\sec \)
3 \(10\;cm{\rm{/}}\sec \)
4 \(20\;cm{\rm{/}}\sec \)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364637 A plane mirror is placed in \(y - z\) plane facing towards negative \(x\)-axis. The mirror is moving parallel to \(y\)-axis with a speed of \(2\;cm{\rm{/}}s\). A point object \(P\) is moving infront of the mirror with a velocity \(\left( {1\;cm/s} \right)\)\({\rm{\hat i + (1}}cm/s{\rm{)\hat j}}{\rm{.}}\) Then which of the following statements is incorrect?

1 The velocity of image with respect to mirror is \({\rm{ - (\hat i + \hat j) }}cm/s\)
2 The velocity of image is \({\rm{ - \hat i + \hat j}}\;cm/s\)
3 The unit vector parallel to the plane of the mirror is \(\frac{1}{{\sqrt 2 }}\hat j + \frac{1}{{\sqrt 2 }}\hat k\)
4 The velocity of image with respect to object is \({\rm{( - 2\hat i) }}cm/s\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364638 A person runs with a speed \(u\) towards a bicycle moving away from him with speed \({\rm{v}}\). The person approaches his image in the plane of the mirror fixed at the rear of bicycle with a speed of

1 \(u - 2v\)
2 \(u - v\)
3 \(2\left( {u - v} \right)\)
4 \(2u - v\)
PHXII09:RAY OPTICS AND OPTICAL INSTRUMENTS

364639 An object is approaching a plane mirror at \(10\,cm{\rm{/}}s.\) A stationary observer sees the image. At what speed will the image approach the stationary observer?

1 \(15\,cm{s^{ - 1}}\)
2 \(10\,cm{s^{ - 1}}\)
3 \(5\,cm{s^{ - 1}}\)
4 \(20\,cm{s^{ - 1}}\)