Physics Unit29: Molecules and Solids - 51fly国际课程 (51fly.win)

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?作业考试练习?国际高中通用物理?Physics Unit29: Molecules and Solids

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习题练习：Physics Unit29: Molecules and Solids

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作者: physics 发布日期: 2023-05-01 13:57 总分: 27分得分: _____________

答题人: 匿名未登录开始时间: 23年05月01日 13:57 切换到: 整卷模式

1#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Covalent bonding is caused by6qyuy5mo. (s z

A. the sharing of electrons between atoms.

B. the transfer of electrons between atoms.

C. unequal charge distributions around neutral molecules.

D. atoms bonding to hydrogen molecules.

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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Ionic bonding is caused si ny x m*)(: pb(,tnfzvx/5qpby

A. the sharing of electrons between atoms.

B. the transfer of electrons between atoms.

C. unequal charge distributions around neutral molecules.

D. atoms bonding to hydrogen molecules.

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The bond energy for a hydrogen mol: e 4j1kdt/ ubjzf:v,vecule is

A. $2.5 \; eV$

B. $3.5 \; eV$

C. $4.5 \; eV$

D. $5.5 \; eV$

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Van der Waals bonding is caused byt/y + z:o)lmh dijwmv9,e3r /e

A. the sharing of electrons between atoms.

B. the transfer of electrons between atoms.

C. unequal charge distribution around neutral molecules.

D. atoms bonding to hydrogen molecules.

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In general, which of the following is h iehb.nag d.uz-,v1: the strongest bond?

A. hydrogen bond

B. van der Waals bond

C. ionic bond

D. covalent bond

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In general, which of, x dd9ipwa8 gr,v8evom s)/;uaxr3/d the following is the weakest bond?

A. hydrogen bond

B. van der Waals bond

C. ionic bond

D. covalent bond

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

For a diatomic quantum mechanical rotator, the energy(+zd2sa6vn em4cc qjgs z,3 3y: yg,ol difference between adjacent enczj 6g2my+qoe4 ,d z3 gsln(vs:cy,a3ergy levels

A. increases as L increases.

B. decreases as L increases.

C. is constant for all L.

D. varies randomly as L increases.

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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic quantum mechanical rotator in the L = 1 quantubzhe -y.+t 0krm state has energy E. The same rotator in the L = 2 quantum state r0-t hyz+k.e bwill have energy

A. 2E.

B. 3E.

C. 6E.

D. none of the given answers

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9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In its lowest quantum state, t-t4j5bngcx c)m /4c s .2xarsyhe energy of a diatomic harmonic oscillator is

A. (1/4)hf.

B. (1/2)hf.

C. hf.

D. (3/2)hf.

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10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

For a diatomic quantum mechanical vibrator, the energy difference between 2 ns9i9yyt yo)o5gpt;adjacent quant 5t ny)9otiygs o;2py9um states

A. increases as v increases.

B. decreases as v increases.

C. is constant for all values of v.

D. varies randomly as v increases.

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11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In its lowest quantum stnxd8 gi7 mzd;;t/.hvx;-l bizate, a diatomic quantum mechanical rotator has a rotational energz v 8 zhixt/dibgm;; l;7x-nd.y of

A. zero.

B. $h/2 \pi I$.

C. $h/\pi I$.

D. none of the given answers

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic quantum mechanicalump () q6.n9jbf+pppg vibrator in its ground state has energy E. This same vibm)np .+p(9 fp6qugj pbrator in its third state has energy

A. E.

B. 3E.

C. 5E.

D. 7E.

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13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Metallic bonding is hj raj9., (wwicaused by

A. the sharing of electrons by all atoms.

B. the transfer of electrons between atoms.

C. unequal charge distributions around neutral molecules.

D. atoms bonding to hydrogen molecules.

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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a good conductor, the highest energy band cafz 2;;+ lnabcontaining electrons is

A. only partially filled.

B. completely filled.

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15#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a good insulator, the highearn6 0,9fp ljost energy band containing electrons, called the valence band, fpn,o6j90 alr is

A. only partially filled.

B. completely filled.

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16#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

An n-type semiconductor isk3.(b+ali, sg/ n chjx produced by

A. doping the host crystal with donor impurities.

B. doping the host crystal with accepter impurities.

C. pure crystals of germanium.

D. none of the given answers

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17#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A p-type semiconductor is produ6 1a5 myv agy/)fl.am4+lsuqwced by

A. doping the host crystal with donor impurities.

B. doping the host crystal with accepter impurities.

C. pure crystals of germanium.

D. none of the given answers

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18#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

In a p-type semiconductor, a hole r4 * /msj0lab(t6c iabm5vdq .is

A. a donor atom.

B. an extra electron supplied by a donor atom.

C. a missing atom in the crystalline structure.

D. a region where an electron is missing.

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19#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

When a voltage is applpagp62-pn1-au gt m*died across a p-type semiconductor, the holes

A. are destroyed.

B. move toward the positive electrode.

C. move toward the negative electrode.

D. do not move.

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20#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

If a battery is connected to a diode with th2 h78eb5r7*eifj14qgbmsbn i e positive terminal to the p side and the negative terminal to 5i bbhs*4nmjgqbfi728er71ethe n side, then diode is said to be

A. forward biased.

B. reversed biased.

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21#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A simple junction transistor consists of three semico xhhpb26cs ;4-d.fz kynductor sections consisting obh4c;f .x6 d-zyskh p2f

A. pnp semiconductors.

B. npn semiconductors.

C. either pnp or npn semiconductors.

D. none of the given answers

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22#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic quantum mecav 0u kearm:bj/is0 i4i*mo85puch,(hanical oscillator has a moment of inertia of $7.73 \times 10^{-45} \; kg \cdot m^{2}$. What is the rotational energy in the quantum state characterized by L = 2?

A. $2.27 \times 10^{-5} \; eV$

B. $2.72 \times 10^{-5} \; eV$

C. $7.22 \times 10^{-5} \; eV$

D. $8.71 \times 10^{-5} \; eV$

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23#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic molecule hafqd 7id 5xvv (xvc0 ye(nek1t b)30qcn,7qc0ls $2.6 \times 10^{-5} \; eV$ of rotational energy in the L = 2 quantum state. What is the rotational energy in the L = 1 quantum state?

A. $3.4 \times 10^{-6} \; eV$

B. $5.3 \times 10^{-6} \; eV$

C. $7.8 \times 10^{-6} \; eV$

D. $8.7 \times 10^{-6} \; eV$

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24#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic molecule halybw-uwwg k+) 2lc.-h s $18 \times 10^{-5} \; eV$ of rotational energy in the L = 2 quantum state. What is the rotational energy in the L = 0 quantum state?

A. $9.0 \times 10^{-5} \; eV$

B. $6.0 \times 10^{-5} \; eV$

C. $3.0 \times 10^{-5} \; eV$

D. $0 \; eV$

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25#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Estimate the rotational energy (in l.j jhx3ii2 9peV) for a diatomic hydrogen molecule in the L = 2 quantum state. (T.j32 i9hl jpixhe equilibrium separation for the H2 molecule is 0.075 nm.)

A. $0.011 \; eV$

B. $0.022 \; eV$

C. $0.033 \; eV$

D. $0.044 \; eV$

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26#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

A diatomic molecule is vibrating in the v = 1 quantum state with a i4b) 7jif4s9ejv s)p9vhw:xa frequency of h9 ws9 bi7v4:jvp sx)ief4j) a$2.0 \times 10^{13} \; Hz$. What is the energy of vibration?

A. $0.041 \; eV$

B. $0.083 \; eV$

C. $0.12 \; eV$

D. $0.17 \; eV$

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27#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

The energy gap between the valence and conduction bando/jtg jga- t; g;3kk:ph6xg(v s in a certain semiconductor is 1.25okg(/ t 3gj:-6jkg;p;xtahgv eV. What is the threshold wavelength for optical absorption in this substance?

A. $599 \; nm$

B. $959 \; nm$

C. $873 \; nm$

D. $995 \; nm$

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